//! moment.js
//! version : 2.29.1
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

;(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
		typeof define === 'function' && define.amd ? define(factory) :
			global.moment = factory()
}(this, (function () { 'use strict';

	var hookCallback;

	function hooks() {
		return hookCallback.apply(null, arguments);
	}

	// This is done to register the method called with moment()
	// without creating circular dependencies.
	function setHookCallback(callback) {
		hookCallback = callback;
	}

	function isArray(input) {
		return (
			input instanceof Array ||
			Object.prototype.toString.call(input) === '[object Array]'
		);
	}

	function isObject(input) {
		// IE8 will treat undefined and null as object if it wasn't for
		// input != null
		return (
			input != null &&
			Object.prototype.toString.call(input) === '[object Object]'
		);
	}

	function hasOwnProp(a, b) {
		return Object.prototype.hasOwnProperty.call(a, b);
	}

	function isObjectEmpty(obj) {
		if (Object.getOwnPropertyNames) {
			return Object.getOwnPropertyNames(obj).length === 0;
		} else {
			var k;
			for (k in obj) {
				if (hasOwnProp(obj, k)) {
					return false;
				}
			}
			return true;
		}
	}

	function isUndefined(input) {
		return input === void 0;
	}

	function isNumber(input) {
		return (
			typeof input === 'number' ||
			Object.prototype.toString.call(input) === '[object Number]'
		);
	}

	function isDate(input) {
		return (
			input instanceof Date ||
			Object.prototype.toString.call(input) === '[object Date]'
		);
	}

	function map(arr, fn) {
		var res = [],
			i;
		for (i = 0; i < arr.length; ++i) {
			res.push(fn(arr[i], i));
		}
		return res;
	}

	function extend(a, b) {
		for (var i in b) {
			if (hasOwnProp(b, i)) {
				a[i] = b[i];
			}
		}

		if (hasOwnProp(b, 'toString')) {
			a.toString = b.toString;
		}

		if (hasOwnProp(b, 'valueOf')) {
			a.valueOf = b.valueOf;
		}

		return a;
	}

	function createUTC(input, format, locale, strict) {
		return createLocalOrUTC(input, format, locale, strict, true).utc();
	}

	function defaultParsingFlags() {
		// We need to deep clone this object.
		return {
			empty: false,
			unusedTokens: [],
			unusedInput: [],
			overflow: -2,
			charsLeftOver: 0,
			nullInput: false,
			invalidEra: null,
			invalidMonth: null,
			invalidFormat: false,
			userInvalidated: false,
			iso: false,
			parsedDateParts: [],
			era: null,
			meridiem: null,
			rfc2822: false,
			weekdayMismatch: false,
		};
	}

	function getParsingFlags(m) {
		if (m._pf == null) {
			m._pf = defaultParsingFlags();
		}
		return m._pf;
	}

	var some;
	if (Array.prototype.some) {
		some = Array.prototype.some;
	} else {
		some = function (fun) {
			var t = Object(this),
				len = t.length >>> 0,
				i;

			for (i = 0; i < len; i++) {
				if (i in t && fun.call(this, t[i], i, t)) {
					return true;
				}
			}

			return false;
		};
	}

	function isValid(m) {
		if (m._isValid == null) {
			var flags = getParsingFlags(m),
				parsedParts = some.call(flags.parsedDateParts, function (i) {
					return i != null;
				}),
				isNowValid =
					!isNaN(m._d.getTime()) &&
					flags.overflow < 0 &&
					!flags.empty &&
					!flags.invalidEra &&
					!flags.invalidMonth &&
					!flags.invalidWeekday &&
					!flags.weekdayMismatch &&
					!flags.nullInput &&
					!flags.invalidFormat &&
					!flags.userInvalidated &&
					(!flags.meridiem || (flags.meridiem && parsedParts));

			if (m._strict) {
				isNowValid =
					isNowValid &&
					flags.charsLeftOver === 0 &&
					flags.unusedTokens.length === 0 &&
					flags.bigHour === undefined;
			}

			if (Object.isFrozen == null || !Object.isFrozen(m)) {
				m._isValid = isNowValid;
			} else {
				return isNowValid;
			}
		}
		return m._isValid;
	}

	function createInvalid(flags) {
		var m = createUTC(NaN);
		if (flags != null) {
			extend(getParsingFlags(m), flags);
		} else {
			getParsingFlags(m).userInvalidated = true;
		}

		return m;
	}

	// Plugins that add properties should also add the key here (null value),
	// so we can properly clone ourselves.
	var momentProperties = (hooks.momentProperties = []),
		updateInProgress = false;

	function copyConfig(to, from) {
		var i, prop, val;

		if (!isUndefined(from._isAMomentObject)) {
			to._isAMomentObject = from._isAMomentObject;
		}
		if (!isUndefined(from._i)) {
			to._i = from._i;
		}
		if (!isUndefined(from._f)) {
			to._f = from._f;
		}
		if (!isUndefined(from._l)) {
			to._l = from._l;
		}
		if (!isUndefined(from._strict)) {
			to._strict = from._strict;
		}
		if (!isUndefined(from._tzm)) {
			to._tzm = from._tzm;
		}
		if (!isUndefined(from._isUTC)) {
			to._isUTC = from._isUTC;
		}
		if (!isUndefined(from._offset)) {
			to._offset = from._offset;
		}
		if (!isUndefined(from._pf)) {
			to._pf = getParsingFlags(from);
		}
		if (!isUndefined(from._locale)) {
			to._locale = from._locale;
		}

		if (momentProperties.length > 0) {
			for (i = 0; i < momentProperties.length; i++) {
				prop = momentProperties[i];
				val = from[prop];
				if (!isUndefined(val)) {
					to[prop] = val;
				}
			}
		}

		return to;
	}

	// Moment prototype object
	function Moment(config) {
		copyConfig(this, config);
		this._d = new Date(config._d != null ? config._d.getTime() : NaN);
		if (!this.isValid()) {
			this._d = new Date(NaN);
		}
		// Prevent infinite loop in case updateOffset creates new moment
		// objects.
		if (updateInProgress === false) {
			updateInProgress = true;
			hooks.updateOffset(this);
			updateInProgress = false;
		}
	}

	function isMoment(obj) {
		return (
			obj instanceof Moment || (obj != null && obj._isAMomentObject != null)
		);
	}

	function warn(msg) {
		if (
			hooks.suppressDeprecationWarnings === false &&
			typeof console !== 'undefined' &&
			console.warn
		) {
			console.warn('Deprecation warning: ' + msg);
		}
	}

	function deprecate(msg, fn) {
		var firstTime = true;

		return extend(function () {
			if (hooks.deprecationHandler != null) {
				hooks.deprecationHandler(null, msg);
			}
			if (firstTime) {
				var args = [],
					arg,
					i,
					key;
				for (i = 0; i < arguments.length; i++) {
					arg = '';
					if (typeof arguments[i] === 'object') {
						arg += '\n[' + i + '] ';
						for (key in arguments[0]) {
							if (hasOwnProp(arguments[0], key)) {
								arg += key + ': ' + arguments[0][key] + ', ';
							}
						}
						arg = arg.slice(0, -2); // Remove trailing comma and space
					} else {
						arg = arguments[i];
					}
					args.push(arg);
				}
				warn(
					msg +
					'\nArguments: ' +
					Array.prototype.slice.call(args).join('') +
					'\n' +
					new Error().stack
				);
				firstTime = false;
			}
			return fn.apply(this, arguments);
		}, fn);
	}

	var deprecations = {};

	function deprecateSimple(name, msg) {
		if (hooks.deprecationHandler != null) {
			hooks.deprecationHandler(name, msg);
		}
		if (!deprecations[name]) {
			warn(msg);
			deprecations[name] = true;
		}
	}

	hooks.suppressDeprecationWarnings = false;
	hooks.deprecationHandler = null;

	function isFunction(input) {
		return (
			(typeof Function !== 'undefined' && input instanceof Function) ||
			Object.prototype.toString.call(input) === '[object Function]'
		);
	}

	function set(config) {
		var prop, i;
		for (i in config) {
			if (hasOwnProp(config, i)) {
				prop = config[i];
				if (isFunction(prop)) {
					this[i] = prop;
				} else {
					this['_' + i] = prop;
				}
			}
		}
		this._config = config;
		// Lenient ordinal parsing accepts just a number in addition to
		// number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
		// TODO: Remove "ordinalParse" fallback in next major release.
		this._dayOfMonthOrdinalParseLenient = new RegExp(
			(this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
			'|' +
			/\d{1,2}/.source
		);
	}

	function mergeConfigs(parentConfig, childConfig) {
		var res = extend({}, parentConfig),
			prop;
		for (prop in childConfig) {
			if (hasOwnProp(childConfig, prop)) {
				if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
					res[prop] = {};
					extend(res[prop], parentConfig[prop]);
					extend(res[prop], childConfig[prop]);
				} else if (childConfig[prop] != null) {
					res[prop] = childConfig[prop];
				} else {
					delete res[prop];
				}
			}
		}
		for (prop in parentConfig) {
			if (
				hasOwnProp(parentConfig, prop) &&
				!hasOwnProp(childConfig, prop) &&
				isObject(parentConfig[prop])
			) {
				// make sure changes to properties don't modify parent config
				res[prop] = extend({}, res[prop]);
			}
		}
		return res;
	}

	function Locale(config) {
		if (config != null) {
			this.set(config);
		}
	}

	var keys;

	if (Object.keys) {
		keys = Object.keys;
	} else {
		keys = function (obj) {
			var i,
				res = [];
			for (i in obj) {
				if (hasOwnProp(obj, i)) {
					res.push(i);
				}
			}
			return res;
		};
	}

	var defaultCalendar = {
		sameDay: '[Today at] LT',
		nextDay: '[Tomorrow at] LT',
		nextWeek: 'dddd [at] LT',
		lastDay: '[Yesterday at] LT',
		lastWeek: '[Last] dddd [at] LT',
		sameElse: 'L',
	};

	function calendar(key, mom, now) {
		var output = this._calendar[key] || this._calendar['sameElse'];
		return isFunction(output) ? output.call(mom, now) : output;
	}

	function zeroFill(number, targetLength, forceSign) {
		var absNumber = '' + Math.abs(number),
			zerosToFill = targetLength - absNumber.length,
			sign = number >= 0;
		return (
			(sign ? (forceSign ? '+' : '') : '-') +
			Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +
			absNumber
		);
	}

	var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,
		localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g,
		formatFunctions = {},
		formatTokenFunctions = {};

	// token:    'M'
	// padded:   ['MM', 2]
	// ordinal:  'Mo'
	// callback: function () { this.month() + 1 }
	function addFormatToken(token, padded, ordinal, callback) {
		var func = callback;
		if (typeof callback === 'string') {
			func = function () {
				return this[callback]();
			};
		}
		if (token) {
			formatTokenFunctions[token] = func;
		}
		if (padded) {
			formatTokenFunctions[padded[0]] = function () {
				return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
			};
		}
		if (ordinal) {
			formatTokenFunctions[ordinal] = function () {
				return this.localeData().ordinal(
					func.apply(this, arguments),
					token
				);
			};
		}
	}

	function removeFormattingTokens(input) {
		if (input.match(/\[[\s\S]/)) {
			return input.replace(/^\[|\]$/g, '');
		}
		return input.replace(/\\/g, '');
	}

	function makeFormatFunction(format) {
		var array = format.match(formattingTokens),
			i,
			length;

		for (i = 0, length = array.length; i < length; i++) {
			if (formatTokenFunctions[array[i]]) {
				array[i] = formatTokenFunctions[array[i]];
			} else {
				array[i] = removeFormattingTokens(array[i]);
			}
		}

		return function (mom) {
			var output = '',
				i;
			for (i = 0; i < length; i++) {
				output += isFunction(array[i])
					? array[i].call(mom, format)
					: array[i];
			}
			return output;
		};
	}

	// format date using native date object
	function formatMoment(m, format) {
		if (!m.isValid()) {
			return m.localeData().invalidDate();
		}

		format = expandFormat(format, m.localeData());
		formatFunctions[format] =
			formatFunctions[format] || makeFormatFunction(format);

		return formatFunctions[format](m);
	}

	function expandFormat(format, locale) {
		var i = 5;

		function replaceLongDateFormatTokens(input) {
			return locale.longDateFormat(input) || input;
		}

		localFormattingTokens.lastIndex = 0;
		while (i >= 0 && localFormattingTokens.test(format)) {
			format = format.replace(
				localFormattingTokens,
				replaceLongDateFormatTokens
			);
			localFormattingTokens.lastIndex = 0;
			i -= 1;
		}

		return format;
	}

	var defaultLongDateFormat = {
		LTS: 'h:mm:ss A',
		LT: 'h:mm A',
		L: 'MM/DD/YYYY',
		LL: 'MMMM D, YYYY',
		LLL: 'MMMM D, YYYY h:mm A',
		LLLL: 'dddd, MMMM D, YYYY h:mm A',
	};

	function longDateFormat(key) {
		var format = this._longDateFormat[key],
			formatUpper = this._longDateFormat[key.toUpperCase()];

		if (format || !formatUpper) {
			return format;
		}

		this._longDateFormat[key] = formatUpper
			.match(formattingTokens)
			.map(function (tok) {
				if (
					tok === 'MMMM' ||
					tok === 'MM' ||
					tok === 'DD' ||
					tok === 'dddd'
				) {
					return tok.slice(1);
				}
				return tok;
			})
			.join('');

		return this._longDateFormat[key];
	}

	var defaultInvalidDate = 'Invalid date';

	function invalidDate() {
		return this._invalidDate;
	}

	var defaultOrdinal = '%d',
		defaultDayOfMonthOrdinalParse = /\d{1,2}/;

	function ordinal(number) {
		return this._ordinal.replace('%d', number);
	}

	var defaultRelativeTime = {
		future: 'in %s',
		past: '%s ago',
		s: 'a few seconds',
		ss: '%d seconds',
		m: 'a minute',
		mm: '%d minutes',
		h: 'an hour',
		hh: '%d hours',
		d: 'a day',
		dd: '%d days',
		w: 'a week',
		ww: '%d weeks',
		M: 'a month',
		MM: '%d months',
		y: 'a year',
		yy: '%d years',
	};

	function relativeTime(number, withoutSuffix, string, isFuture) {
		var output = this._relativeTime[string];
		return isFunction(output)
			? output(number, withoutSuffix, string, isFuture)
			: output.replace(/%d/i, number);
	}

	function pastFuture(diff, output) {
		var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
		return isFunction(format) ? format(output) : format.replace(/%s/i, output);
	}

	var aliases = {};

	function addUnitAlias(unit, shorthand) {
		var lowerCase = unit.toLowerCase();
		aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
	}

	function normalizeUnits(units) {
		return typeof units === 'string'
			? aliases[units] || aliases[units.toLowerCase()]
			: undefined;
	}

	function normalizeObjectUnits(inputObject) {
		var normalizedInput = {},
			normalizedProp,
			prop;

		for (prop in inputObject) {
			if (hasOwnProp(inputObject, prop)) {
				normalizedProp = normalizeUnits(prop);
				if (normalizedProp) {
					normalizedInput[normalizedProp] = inputObject[prop];
				}
			}
		}

		return normalizedInput;
	}

	var priorities = {};

	function addUnitPriority(unit, priority) {
		priorities[unit] = priority;
	}

	function getPrioritizedUnits(unitsObj) {
		var units = [],
			u;
		for (u in unitsObj) {
			if (hasOwnProp(unitsObj, u)) {
				units.push({ unit: u, priority: priorities[u] });
			}
		}
		units.sort(function (a, b) {
			return a.priority - b.priority;
		});
		return units;
	}

	function isLeapYear(year) {
		return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
	}

	function absFloor(number) {
		if (number < 0) {
			// -0 -> 0
			return Math.ceil(number) || 0;
		} else {
			return Math.floor(number);
		}
	}

	function toInt(argumentForCoercion) {
		var coercedNumber = +argumentForCoercion,
			value = 0;

		if (coercedNumber !== 0 && isFinite(coercedNumber)) {
			value = absFloor(coercedNumber);
		}

		return value;
	}

	function makeGetSet(unit, keepTime) {
		return function (value) {
			if (value != null) {
				set$1(this, unit, value);
				hooks.updateOffset(this, keepTime);
				return this;
			} else {
				return get(this, unit);
			}
		};
	}

	function get(mom, unit) {
		return mom.isValid()
			? mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]()
			: NaN;
	}

	function set$1(mom, unit, value) {
		if (mom.isValid() && !isNaN(value)) {
			if (
				unit === 'FullYear' &&
				isLeapYear(mom.year()) &&
				mom.month() === 1 &&
				mom.date() === 29
			) {
				value = toInt(value);
				mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](
					value,
					mom.month(),
					daysInMonth(value, mom.month())
				);
			} else {
				mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
			}
		}
	}

	// MOMENTS

	function stringGet(units) {
		units = normalizeUnits(units);
		if (isFunction(this[units])) {
			return this[units]();
		}
		return this;
	}

	function stringSet(units, value) {
		if (typeof units === 'object') {
			units = normalizeObjectUnits(units);
			var prioritized = getPrioritizedUnits(units),
				i;
			for (i = 0; i < prioritized.length; i++) {
				this[prioritized[i].unit](units[prioritized[i].unit]);
			}
		} else {
			units = normalizeUnits(units);
			if (isFunction(this[units])) {
				return this[units](value);
			}
		}
		return this;
	}

	var match1 = /\d/, //       0 - 9
		match2 = /\d\d/, //      00 - 99
		match3 = /\d{3}/, //     000 - 999
		match4 = /\d{4}/, //    0000 - 9999
		match6 = /[+-]?\d{6}/, // -999999 - 999999
		match1to2 = /\d\d?/, //       0 - 99
		match3to4 = /\d\d\d\d?/, //     999 - 9999
		match5to6 = /\d\d\d\d\d\d?/, //   99999 - 999999
		match1to3 = /\d{1,3}/, //       0 - 999
		match1to4 = /\d{1,4}/, //       0 - 9999
		match1to6 = /[+-]?\d{1,6}/, // -999999 - 999999
		matchUnsigned = /\d+/, //       0 - inf
		matchSigned = /[+-]?\d+/, //    -inf - inf
		matchOffset = /Z|[+-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
		matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z
		matchTimestamp = /[+-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
		// any word (or two) characters or numbers including two/three word month in arabic.
		// includes scottish gaelic two word and hyphenated months
		matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i,
		regexes;

	regexes = {};

	function addRegexToken(token, regex, strictRegex) {
		regexes[token] = isFunction(regex)
			? regex
			: function (isStrict, localeData) {
				return isStrict && strictRegex ? strictRegex : regex;
			};
	}

	function getParseRegexForToken(token, config) {
		if (!hasOwnProp(regexes, token)) {
			return new RegExp(unescapeFormat(token));
		}

		return regexes[token](config._strict, config._locale);
	}

	// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
	function unescapeFormat(s) {
		return regexEscape(
			s
				.replace('\\', '')
				.replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (
					matched,
					p1,
					p2,
					p3,
					p4
				) {
					return p1 || p2 || p3 || p4;
				})
		);
	}

	function regexEscape(s) {
		return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
	}

	var tokens = {};

	function addParseToken(token, callback) {
		var i,
			func = callback;
		if (typeof token === 'string') {
			token = [token];
		}
		if (isNumber(callback)) {
			func = function (input, array) {
				array[callback] = toInt(input);
			};
		}
		for (i = 0; i < token.length; i++) {
			tokens[token[i]] = func;
		}
	}

	function addWeekParseToken(token, callback) {
		addParseToken(token, function (input, array, config, token) {
			config._w = config._w || {};
			callback(input, config._w, config, token);
		});
	}

	function addTimeToArrayFromToken(token, input, config) {
		if (input != null && hasOwnProp(tokens, token)) {
			tokens[token](input, config._a, config, token);
		}
	}

	var YEAR = 0,
		MONTH = 1,
		DATE = 2,
		HOUR = 3,
		MINUTE = 4,
		SECOND = 5,
		MILLISECOND = 6,
		WEEK = 7,
		WEEKDAY = 8;

	function mod(n, x) {
		return ((n % x) + x) % x;
	}

	var indexOf;

	if (Array.prototype.indexOf) {
		indexOf = Array.prototype.indexOf;
	} else {
		indexOf = function (o) {
			// I know
			var i;
			for (i = 0; i < this.length; ++i) {
				if (this[i] === o) {
					return i;
				}
			}
			return -1;
		};
	}

	function daysInMonth(year, month) {
		if (isNaN(year) || isNaN(month)) {
			return NaN;
		}
		var modMonth = mod(month, 12);
		year += (month - modMonth) / 12;
		return modMonth === 1
			? isLeapYear(year)
				? 29
				: 28
			: 31 - ((modMonth % 7) % 2);
	}

	// FORMATTING

	addFormatToken('M', ['MM', 2], 'Mo', function () {
		return this.month() + 1;
	});

	addFormatToken('MMM', 0, 0, function (format) {
		return this.localeData().monthsShort(this, format);
	});

	addFormatToken('MMMM', 0, 0, function (format) {
		return this.localeData().months(this, format);
	});

	// ALIASES

	addUnitAlias('month', 'M');

	// PRIORITY

	addUnitPriority('month', 8);

	// PARSING

	addRegexToken('M', match1to2);
	addRegexToken('MM', match1to2, match2);
	addRegexToken('MMM', function (isStrict, locale) {
		return locale.monthsShortRegex(isStrict);
	});
	addRegexToken('MMMM', function (isStrict, locale) {
		return locale.monthsRegex(isStrict);
	});

	addParseToken(['M', 'MM'], function (input, array) {
		array[MONTH] = toInt(input) - 1;
	});

	addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
		var month = config._locale.monthsParse(input, token, config._strict);
		// if we didn't find a month name, mark the date as invalid.
		if (month != null) {
			array[MONTH] = month;
		} else {
			getParsingFlags(config).invalidMonth = input;
		}
	});

	// LOCALES

	var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split(
		'_'
		),
		defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split(
			'_'
		),
		MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/,
		defaultMonthsShortRegex = matchWord,
		defaultMonthsRegex = matchWord;

	function localeMonths(m, format) {
		if (!m) {
			return isArray(this._months)
				? this._months
				: this._months['standalone'];
		}
		return isArray(this._months)
			? this._months[m.month()]
			: this._months[
				(this._months.isFormat || MONTHS_IN_FORMAT).test(format)
					? 'format'
					: 'standalone'
				][m.month()];
	}

	function localeMonthsShort(m, format) {
		if (!m) {
			return isArray(this._monthsShort)
				? this._monthsShort
				: this._monthsShort['standalone'];
		}
		return isArray(this._monthsShort)
			? this._monthsShort[m.month()]
			: this._monthsShort[
				MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'
				][m.month()];
	}

	function handleStrictParse(monthName, format, strict) {
		var i,
			ii,
			mom,
			llc = monthName.toLocaleLowerCase();
		if (!this._monthsParse) {
			// this is not used
			this._monthsParse = [];
			this._longMonthsParse = [];
			this._shortMonthsParse = [];
			for (i = 0; i < 12; ++i) {
				mom = createUTC([2000, i]);
				this._shortMonthsParse[i] = this.monthsShort(
					mom,
					''
				).toLocaleLowerCase();
				this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
			}
		}

		if (strict) {
			if (format === 'MMM') {
				ii = indexOf.call(this._shortMonthsParse, llc);
				return ii !== -1 ? ii : null;
			} else {
				ii = indexOf.call(this._longMonthsParse, llc);
				return ii !== -1 ? ii : null;
			}
		} else {
			if (format === 'MMM') {
				ii = indexOf.call(this._shortMonthsParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._longMonthsParse, llc);
				return ii !== -1 ? ii : null;
			} else {
				ii = indexOf.call(this._longMonthsParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._shortMonthsParse, llc);
				return ii !== -1 ? ii : null;
			}
		}
	}

	function localeMonthsParse(monthName, format, strict) {
		var i, mom, regex;

		if (this._monthsParseExact) {
			return handleStrictParse.call(this, monthName, format, strict);
		}

		if (!this._monthsParse) {
			this._monthsParse = [];
			this._longMonthsParse = [];
			this._shortMonthsParse = [];
		}

		// TODO: add sorting
		// Sorting makes sure if one month (or abbr) is a prefix of another
		// see sorting in computeMonthsParse
		for (i = 0; i < 12; i++) {
			// make the regex if we don't have it already
			mom = createUTC([2000, i]);
			if (strict && !this._longMonthsParse[i]) {
				this._longMonthsParse[i] = new RegExp(
					'^' + this.months(mom, '').replace('.', '') + '$',
					'i'
				);
				this._shortMonthsParse[i] = new RegExp(
					'^' + this.monthsShort(mom, '').replace('.', '') + '$',
					'i'
				);
			}
			if (!strict && !this._monthsParse[i]) {
				regex =
					'^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
				this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
			}
			// test the regex
			if (
				strict &&
				format === 'MMMM' &&
				this._longMonthsParse[i].test(monthName)
			) {
				return i;
			} else if (
				strict &&
				format === 'MMM' &&
				this._shortMonthsParse[i].test(monthName)
			) {
				return i;
			} else if (!strict && this._monthsParse[i].test(monthName)) {
				return i;
			}
		}
	}

	// MOMENTS

	function setMonth(mom, value) {
		var dayOfMonth;

		if (!mom.isValid()) {
			// No op
			return mom;
		}

		if (typeof value === 'string') {
			if (/^\d+$/.test(value)) {
				value = toInt(value);
			} else {
				value = mom.localeData().monthsParse(value);
				// TODO: Another silent failure?
				if (!isNumber(value)) {
					return mom;
				}
			}
		}

		dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
		mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
		return mom;
	}

	function getSetMonth(value) {
		if (value != null) {
			setMonth(this, value);
			hooks.updateOffset(this, true);
			return this;
		} else {
			return get(this, 'Month');
		}
	}

	function getDaysInMonth() {
		return daysInMonth(this.year(), this.month());
	}

	function monthsShortRegex(isStrict) {
		if (this._monthsParseExact) {
			if (!hasOwnProp(this, '_monthsRegex')) {
				computeMonthsParse.call(this);
			}
			if (isStrict) {
				return this._monthsShortStrictRegex;
			} else {
				return this._monthsShortRegex;
			}
		} else {
			if (!hasOwnProp(this, '_monthsShortRegex')) {
				this._monthsShortRegex = defaultMonthsShortRegex;
			}
			return this._monthsShortStrictRegex && isStrict
				? this._monthsShortStrictRegex
				: this._monthsShortRegex;
		}
	}

	function monthsRegex(isStrict) {
		if (this._monthsParseExact) {
			if (!hasOwnProp(this, '_monthsRegex')) {
				computeMonthsParse.call(this);
			}
			if (isStrict) {
				return this._monthsStrictRegex;
			} else {
				return this._monthsRegex;
			}
		} else {
			if (!hasOwnProp(this, '_monthsRegex')) {
				this._monthsRegex = defaultMonthsRegex;
			}
			return this._monthsStrictRegex && isStrict
				? this._monthsStrictRegex
				: this._monthsRegex;
		}
	}

	function computeMonthsParse() {
		function cmpLenRev(a, b) {
			return b.length - a.length;
		}

		var shortPieces = [],
			longPieces = [],
			mixedPieces = [],
			i,
			mom;
		for (i = 0; i < 12; i++) {
			// make the regex if we don't have it already
			mom = createUTC([2000, i]);
			shortPieces.push(this.monthsShort(mom, ''));
			longPieces.push(this.months(mom, ''));
			mixedPieces.push(this.months(mom, ''));
			mixedPieces.push(this.monthsShort(mom, ''));
		}
		// Sorting makes sure if one month (or abbr) is a prefix of another it
		// will match the longer piece.
		shortPieces.sort(cmpLenRev);
		longPieces.sort(cmpLenRev);
		mixedPieces.sort(cmpLenRev);
		for (i = 0; i < 12; i++) {
			shortPieces[i] = regexEscape(shortPieces[i]);
			longPieces[i] = regexEscape(longPieces[i]);
		}
		for (i = 0; i < 24; i++) {
			mixedPieces[i] = regexEscape(mixedPieces[i]);
		}

		this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
		this._monthsShortRegex = this._monthsRegex;
		this._monthsStrictRegex = new RegExp(
			'^(' + longPieces.join('|') + ')',
			'i'
		);
		this._monthsShortStrictRegex = new RegExp(
			'^(' + shortPieces.join('|') + ')',
			'i'
		);
	}

	// FORMATTING

	addFormatToken('Y', 0, 0, function () {
		var y = this.year();
		return y <= 9999 ? zeroFill(y, 4) : '+' + y;
	});

	addFormatToken(0, ['YY', 2], 0, function () {
		return this.year() % 100;
	});

	addFormatToken(0, ['YYYY', 4], 0, 'year');
	addFormatToken(0, ['YYYYY', 5], 0, 'year');
	addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

	// ALIASES

	addUnitAlias('year', 'y');

	// PRIORITIES

	addUnitPriority('year', 1);

	// PARSING

	addRegexToken('Y', matchSigned);
	addRegexToken('YY', match1to2, match2);
	addRegexToken('YYYY', match1to4, match4);
	addRegexToken('YYYYY', match1to6, match6);
	addRegexToken('YYYYYY', match1to6, match6);

	addParseToken(['YYYYY', 'YYYYYY'], YEAR);
	addParseToken('YYYY', function (input, array) {
		array[YEAR] =
			input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
	});
	addParseToken('YY', function (input, array) {
		array[YEAR] = hooks.parseTwoDigitYear(input);
	});
	addParseToken('Y', function (input, array) {
		array[YEAR] = parseInt(input, 10);
	});

	// HELPERS

	function daysInYear(year) {
		return isLeapYear(year) ? 366 : 365;
	}

	// HOOKS

	hooks.parseTwoDigitYear = function (input) {
		return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
	};

	// MOMENTS

	var getSetYear = makeGetSet('FullYear', true);

	function getIsLeapYear() {
		return isLeapYear(this.year());
	}

	function createDate(y, m, d, h, M, s, ms) {
		// can't just apply() to create a date:
		// https://stackoverflow.com/q/181348
		var date;
		// the date constructor remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			// preserve leap years using a full 400 year cycle, then reset
			date = new Date(y + 400, m, d, h, M, s, ms);
			if (isFinite(date.getFullYear())) {
				date.setFullYear(y);
			}
		} else {
			date = new Date(y, m, d, h, M, s, ms);
		}

		return date;
	}

	function createUTCDate(y) {
		var date, args;
		// the Date.UTC function remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			args = Array.prototype.slice.call(arguments);
			// preserve leap years using a full 400 year cycle, then reset
			args[0] = y + 400;
			date = new Date(Date.UTC.apply(null, args));
			if (isFinite(date.getUTCFullYear())) {
				date.setUTCFullYear(y);
			}
		} else {
			date = new Date(Date.UTC.apply(null, arguments));
		}

		return date;
	}

	// start-of-first-week - start-of-year
	function firstWeekOffset(year, dow, doy) {
		var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
			fwd = 7 + dow - doy,
			// first-week day local weekday -- which local weekday is fwd
			fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

		return -fwdlw + fwd - 1;
	}

	// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
	function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
		var localWeekday = (7 + weekday - dow) % 7,
			weekOffset = firstWeekOffset(year, dow, doy),
			dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
			resYear,
			resDayOfYear;

		if (dayOfYear <= 0) {
			resYear = year - 1;
			resDayOfYear = daysInYear(resYear) + dayOfYear;
		} else if (dayOfYear > daysInYear(year)) {
			resYear = year + 1;
			resDayOfYear = dayOfYear - daysInYear(year);
		} else {
			resYear = year;
			resDayOfYear = dayOfYear;
		}

		return {
			year: resYear,
			dayOfYear: resDayOfYear,
		};
	}

	function weekOfYear(mom, dow, doy) {
		var weekOffset = firstWeekOffset(mom.year(), dow, doy),
			week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
			resWeek,
			resYear;

		if (week < 1) {
			resYear = mom.year() - 1;
			resWeek = week + weeksInYear(resYear, dow, doy);
		} else if (week > weeksInYear(mom.year(), dow, doy)) {
			resWeek = week - weeksInYear(mom.year(), dow, doy);
			resYear = mom.year() + 1;
		} else {
			resYear = mom.year();
			resWeek = week;
		}

		return {
			week: resWeek,
			year: resYear,
		};
	}

	function weeksInYear(year, dow, doy) {
		var weekOffset = firstWeekOffset(year, dow, doy),
			weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
		return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
	}

	// FORMATTING

	addFormatToken('w', ['ww', 2], 'wo', 'week');
	addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

	// ALIASES

	addUnitAlias('week', 'w');
	addUnitAlias('isoWeek', 'W');

	// PRIORITIES

	addUnitPriority('week', 5);
	addUnitPriority('isoWeek', 5);

	// PARSING

	addRegexToken('w', match1to2);
	addRegexToken('ww', match1to2, match2);
	addRegexToken('W', match1to2);
	addRegexToken('WW', match1to2, match2);

	addWeekParseToken(['w', 'ww', 'W', 'WW'], function (
		input,
		week,
		config,
		token
	) {
		week[token.substr(0, 1)] = toInt(input);
	});

	// HELPERS

	// LOCALES

	function localeWeek(mom) {
		return weekOfYear(mom, this._week.dow, this._week.doy).week;
	}

	var defaultLocaleWeek = {
		dow: 0, // Sunday is the first day of the week.
		doy: 6, // The week that contains Jan 6th is the first week of the year.
	};

	function localeFirstDayOfWeek() {
		return this._week.dow;
	}

	function localeFirstDayOfYear() {
		return this._week.doy;
	}

	// MOMENTS

	function getSetWeek(input) {
		var week = this.localeData().week(this);
		return input == null ? week : this.add((input - week) * 7, 'd');
	}

	function getSetISOWeek(input) {
		var week = weekOfYear(this, 1, 4).week;
		return input == null ? week : this.add((input - week) * 7, 'd');
	}

	// FORMATTING

	addFormatToken('d', 0, 'do', 'day');

	addFormatToken('dd', 0, 0, function (format) {
		return this.localeData().weekdaysMin(this, format);
	});

	addFormatToken('ddd', 0, 0, function (format) {
		return this.localeData().weekdaysShort(this, format);
	});

	addFormatToken('dddd', 0, 0, function (format) {
		return this.localeData().weekdays(this, format);
	});

	addFormatToken('e', 0, 0, 'weekday');
	addFormatToken('E', 0, 0, 'isoWeekday');

	// ALIASES

	addUnitAlias('day', 'd');
	addUnitAlias('weekday', 'e');
	addUnitAlias('isoWeekday', 'E');

	// PRIORITY
	addUnitPriority('day', 11);
	addUnitPriority('weekday', 11);
	addUnitPriority('isoWeekday', 11);

	// PARSING

	addRegexToken('d', match1to2);
	addRegexToken('e', match1to2);
	addRegexToken('E', match1to2);
	addRegexToken('dd', function (isStrict, locale) {
		return locale.weekdaysMinRegex(isStrict);
	});
	addRegexToken('ddd', function (isStrict, locale) {
		return locale.weekdaysShortRegex(isStrict);
	});
	addRegexToken('dddd', function (isStrict, locale) {
		return locale.weekdaysRegex(isStrict);
	});

	addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
		var weekday = config._locale.weekdaysParse(input, token, config._strict);
		// if we didn't get a weekday name, mark the date as invalid
		if (weekday != null) {
			week.d = weekday;
		} else {
			getParsingFlags(config).invalidWeekday = input;
		}
	});

	addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
		week[token] = toInt(input);
	});

	// HELPERS

	function parseWeekday(input, locale) {
		if (typeof input !== 'string') {
			return input;
		}

		if (!isNaN(input)) {
			return parseInt(input, 10);
		}

		input = locale.weekdaysParse(input);
		if (typeof input === 'number') {
			return input;
		}

		return null;
	}

	function parseIsoWeekday(input, locale) {
		if (typeof input === 'string') {
			return locale.weekdaysParse(input) % 7 || 7;
		}
		return isNaN(input) ? null : input;
	}

	// LOCALES
	function shiftWeekdays(ws, n) {
		return ws.slice(n, 7).concat(ws.slice(0, n));
	}

	var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(
		'_'
		),
		defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
		defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
		defaultWeekdaysRegex = matchWord,
		defaultWeekdaysShortRegex = matchWord,
		defaultWeekdaysMinRegex = matchWord;

	function localeWeekdays(m, format) {
		var weekdays = isArray(this._weekdays)
			? this._weekdays
			: this._weekdays[
				m && m !== true && this._weekdays.isFormat.test(format)
					? 'format'
					: 'standalone'
				];
		return m === true
			? shiftWeekdays(weekdays, this._week.dow)
			: m
				? weekdays[m.day()]
				: weekdays;
	}

	function localeWeekdaysShort(m) {
		return m === true
			? shiftWeekdays(this._weekdaysShort, this._week.dow)
			: m
				? this._weekdaysShort[m.day()]
				: this._weekdaysShort;
	}

	function localeWeekdaysMin(m) {
		return m === true
			? shiftWeekdays(this._weekdaysMin, this._week.dow)
			: m
				? this._weekdaysMin[m.day()]
				: this._weekdaysMin;
	}

	function handleStrictParse$1(weekdayName, format, strict) {
		var i,
			ii,
			mom,
			llc = weekdayName.toLocaleLowerCase();
		if (!this._weekdaysParse) {
			this._weekdaysParse = [];
			this._shortWeekdaysParse = [];
			this._minWeekdaysParse = [];

			for (i = 0; i < 7; ++i) {
				mom = createUTC([2000, 1]).day(i);
				this._minWeekdaysParse[i] = this.weekdaysMin(
					mom,
					''
				).toLocaleLowerCase();
				this._shortWeekdaysParse[i] = this.weekdaysShort(
					mom,
					''
				).toLocaleLowerCase();
				this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
			}
		}

		if (strict) {
			if (format === 'dddd') {
				ii = indexOf.call(this._weekdaysParse, llc);
				return ii !== -1 ? ii : null;
			} else if (format === 'ddd') {
				ii = indexOf.call(this._shortWeekdaysParse, llc);
				return ii !== -1 ? ii : null;
			} else {
				ii = indexOf.call(this._minWeekdaysParse, llc);
				return ii !== -1 ? ii : null;
			}
		} else {
			if (format === 'dddd') {
				ii = indexOf.call(this._weekdaysParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._shortWeekdaysParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._minWeekdaysParse, llc);
				return ii !== -1 ? ii : null;
			} else if (format === 'ddd') {
				ii = indexOf.call(this._shortWeekdaysParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._weekdaysParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._minWeekdaysParse, llc);
				return ii !== -1 ? ii : null;
			} else {
				ii = indexOf.call(this._minWeekdaysParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._weekdaysParse, llc);
				if (ii !== -1) {
					return ii;
				}
				ii = indexOf.call(this._shortWeekdaysParse, llc);
				return ii !== -1 ? ii : null;
			}
		}
	}

	function localeWeekdaysParse(weekdayName, format, strict) {
		var i, mom, regex;

		if (this._weekdaysParseExact) {
			return handleStrictParse$1.call(this, weekdayName, format, strict);
		}

		if (!this._weekdaysParse) {
			this._weekdaysParse = [];
			this._minWeekdaysParse = [];
			this._shortWeekdaysParse = [];
			this._fullWeekdaysParse = [];
		}

		for (i = 0; i < 7; i++) {
			// make the regex if we don't have it already

			mom = createUTC([2000, 1]).day(i);
			if (strict && !this._fullWeekdaysParse[i]) {
				this._fullWeekdaysParse[i] = new RegExp(
					'^' + this.weekdays(mom, '').replace('.', '\\.?') + '$',
					'i'
				);
				this._shortWeekdaysParse[i] = new RegExp(
					'^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$',
					'i'
				);
				this._minWeekdaysParse[i] = new RegExp(
					'^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$',
					'i'
				);
			}
			if (!this._weekdaysParse[i]) {
				regex =
					'^' +
					this.weekdays(mom, '') +
					'|^' +
					this.weekdaysShort(mom, '') +
					'|^' +
					this.weekdaysMin(mom, '');
				this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
			}
			// test the regex
			if (
				strict &&
				format === 'dddd' &&
				this._fullWeekdaysParse[i].test(weekdayName)
			) {
				return i;
			} else if (
				strict &&
				format === 'ddd' &&
				this._shortWeekdaysParse[i].test(weekdayName)
			) {
				return i;
			} else if (
				strict &&
				format === 'dd' &&
				this._minWeekdaysParse[i].test(weekdayName)
			) {
				return i;
			} else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
				return i;
			}
		}
	}

	// MOMENTS

	function getSetDayOfWeek(input) {
		if (!this.isValid()) {
			return input != null ? this : NaN;
		}
		var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
		if (input != null) {
			input = parseWeekday(input, this.localeData());
			return this.add(input - day, 'd');
		} else {
			return day;
		}
	}

	function getSetLocaleDayOfWeek(input) {
		if (!this.isValid()) {
			return input != null ? this : NaN;
		}
		var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
		return input == null ? weekday : this.add(input - weekday, 'd');
	}

	function getSetISODayOfWeek(input) {
		if (!this.isValid()) {
			return input != null ? this : NaN;
		}

		// behaves the same as moment#day except
		// as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
		// as a setter, sunday should belong to the previous week.

		if (input != null) {
			var weekday = parseIsoWeekday(input, this.localeData());
			return this.day(this.day() % 7 ? weekday : weekday - 7);
		} else {
			return this.day() || 7;
		}
	}

	function weekdaysRegex(isStrict) {
		if (this._weekdaysParseExact) {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				computeWeekdaysParse.call(this);
			}
			if (isStrict) {
				return this._weekdaysStrictRegex;
			} else {
				return this._weekdaysRegex;
			}
		} else {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				this._weekdaysRegex = defaultWeekdaysRegex;
			}
			return this._weekdaysStrictRegex && isStrict
				? this._weekdaysStrictRegex
				: this._weekdaysRegex;
		}
	}

	function weekdaysShortRegex(isStrict) {
		if (this._weekdaysParseExact) {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				computeWeekdaysParse.call(this);
			}
			if (isStrict) {
				return this._weekdaysShortStrictRegex;
			} else {
				return this._weekdaysShortRegex;
			}
		} else {
			if (!hasOwnProp(this, '_weekdaysShortRegex')) {
				this._weekdaysShortRegex = defaultWeekdaysShortRegex;
			}
			return this._weekdaysShortStrictRegex && isStrict
				? this._weekdaysShortStrictRegex
				: this._weekdaysShortRegex;
		}
	}

	function weekdaysMinRegex(isStrict) {
		if (this._weekdaysParseExact) {
			if (!hasOwnProp(this, '_weekdaysRegex')) {
				computeWeekdaysParse.call(this);
			}
			if (isStrict) {
				return this._weekdaysMinStrictRegex;
			} else {
				return this._weekdaysMinRegex;
			}
		} else {
			if (!hasOwnProp(this, '_weekdaysMinRegex')) {
				this._weekdaysMinRegex = defaultWeekdaysMinRegex;
			}
			return this._weekdaysMinStrictRegex && isStrict
				? this._weekdaysMinStrictRegex
				: this._weekdaysMinRegex;
		}
	}

	function computeWeekdaysParse() {
		function cmpLenRev(a, b) {
			return b.length - a.length;
		}

		var minPieces = [],
			shortPieces = [],
			longPieces = [],
			mixedPieces = [],
			i,
			mom,
			minp,
			shortp,
			longp;
		for (i = 0; i < 7; i++) {
			// make the regex if we don't have it already
			mom = createUTC([2000, 1]).day(i);
			minp = regexEscape(this.weekdaysMin(mom, ''));
			shortp = regexEscape(this.weekdaysShort(mom, ''));
			longp = regexEscape(this.weekdays(mom, ''));
			minPieces.push(minp);
			shortPieces.push(shortp);
			longPieces.push(longp);
			mixedPieces.push(minp);
			mixedPieces.push(shortp);
			mixedPieces.push(longp);
		}
		// Sorting makes sure if one weekday (or abbr) is a prefix of another it
		// will match the longer piece.
		minPieces.sort(cmpLenRev);
		shortPieces.sort(cmpLenRev);
		longPieces.sort(cmpLenRev);
		mixedPieces.sort(cmpLenRev);

		this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
		this._weekdaysShortRegex = this._weekdaysRegex;
		this._weekdaysMinRegex = this._weekdaysRegex;

		this._weekdaysStrictRegex = new RegExp(
			'^(' + longPieces.join('|') + ')',
			'i'
		);
		this._weekdaysShortStrictRegex = new RegExp(
			'^(' + shortPieces.join('|') + ')',
			'i'
		);
		this._weekdaysMinStrictRegex = new RegExp(
			'^(' + minPieces.join('|') + ')',
			'i'
		);
	}

	// FORMATTING

	function hFormat() {
		return this.hours() % 12 || 12;
	}

	function kFormat() {
		return this.hours() || 24;
	}

	addFormatToken('H', ['HH', 2], 0, 'hour');
	addFormatToken('h', ['hh', 2], 0, hFormat);
	addFormatToken('k', ['kk', 2], 0, kFormat);

	addFormatToken('hmm', 0, 0, function () {
		return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
	});

	addFormatToken('hmmss', 0, 0, function () {
		return (
			'' +
			hFormat.apply(this) +
			zeroFill(this.minutes(), 2) +
			zeroFill(this.seconds(), 2)
		);
	});

	addFormatToken('Hmm', 0, 0, function () {
		return '' + this.hours() + zeroFill(this.minutes(), 2);
	});

	addFormatToken('Hmmss', 0, 0, function () {
		return (
			'' +
			this.hours() +
			zeroFill(this.minutes(), 2) +
			zeroFill(this.seconds(), 2)
		);
	});

	function meridiem(token, lowercase) {
		addFormatToken(token, 0, 0, function () {
			return this.localeData().meridiem(
				this.hours(),
				this.minutes(),
				lowercase
			);
		});
	}

	meridiem('a', true);
	meridiem('A', false);

	// ALIASES

	addUnitAlias('hour', 'h');

	// PRIORITY
	addUnitPriority('hour', 13);

	// PARSING

	function matchMeridiem(isStrict, locale) {
		return locale._meridiemParse;
	}

	addRegexToken('a', matchMeridiem);
	addRegexToken('A', matchMeridiem);
	addRegexToken('H', match1to2);
	addRegexToken('h', match1to2);
	addRegexToken('k', match1to2);
	addRegexToken('HH', match1to2, match2);
	addRegexToken('hh', match1to2, match2);
	addRegexToken('kk', match1to2, match2);

	addRegexToken('hmm', match3to4);
	addRegexToken('hmmss', match5to6);
	addRegexToken('Hmm', match3to4);
	addRegexToken('Hmmss', match5to6);

	addParseToken(['H', 'HH'], HOUR);
	addParseToken(['k', 'kk'], function (input, array, config) {
		var kInput = toInt(input);
		array[HOUR] = kInput === 24 ? 0 : kInput;
	});
	addParseToken(['a', 'A'], function (input, array, config) {
		config._isPm = config._locale.isPM(input);
		config._meridiem = input;
	});
	addParseToken(['h', 'hh'], function (input, array, config) {
		array[HOUR] = toInt(input);
		getParsingFlags(config).bigHour = true;
	});
	addParseToken('hmm', function (input, array, config) {
		var pos = input.length - 2;
		array[HOUR] = toInt(input.substr(0, pos));
		array[MINUTE] = toInt(input.substr(pos));
		getParsingFlags(config).bigHour = true;
	});
	addParseToken('hmmss', function (input, array, config) {
		var pos1 = input.length - 4,
			pos2 = input.length - 2;
		array[HOUR] = toInt(input.substr(0, pos1));
		array[MINUTE] = toInt(input.substr(pos1, 2));
		array[SECOND] = toInt(input.substr(pos2));
		getParsingFlags(config).bigHour = true;
	});
	addParseToken('Hmm', function (input, array, config) {
		var pos = input.length - 2;
		array[HOUR] = toInt(input.substr(0, pos));
		array[MINUTE] = toInt(input.substr(pos));
	});
	addParseToken('Hmmss', function (input, array, config) {
		var pos1 = input.length - 4,
			pos2 = input.length - 2;
		array[HOUR] = toInt(input.substr(0, pos1));
		array[MINUTE] = toInt(input.substr(pos1, 2));
		array[SECOND] = toInt(input.substr(pos2));
	});

	// LOCALES

	function localeIsPM(input) {
		// IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
		// Using charAt should be more compatible.
		return (input + '').toLowerCase().charAt(0) === 'p';
	}

	var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i,
		// Setting the hour should keep the time, because the user explicitly
		// specified which hour they want. So trying to maintain the same hour (in
		// a new timezone) makes sense. Adding/subtracting hours does not follow
		// this rule.
		getSetHour = makeGetSet('Hours', true);

	function localeMeridiem(hours, minutes, isLower) {
		if (hours > 11) {
			return isLower ? 'pm' : 'PM';
		} else {
			return isLower ? 'am' : 'AM';
		}
	}

	var baseConfig = {
		calendar: defaultCalendar,
		longDateFormat: defaultLongDateFormat,
		invalidDate: defaultInvalidDate,
		ordinal: defaultOrdinal,
		dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
		relativeTime: defaultRelativeTime,

		months: defaultLocaleMonths,
		monthsShort: defaultLocaleMonthsShort,

		week: defaultLocaleWeek,

		weekdays: defaultLocaleWeekdays,
		weekdaysMin: defaultLocaleWeekdaysMin,
		weekdaysShort: defaultLocaleWeekdaysShort,

		meridiemParse: defaultLocaleMeridiemParse,
	};

	// internal storage for locale config files
	var locales = {},
		localeFamilies = {},
		globalLocale;

	function commonPrefix(arr1, arr2) {
		var i,
			minl = Math.min(arr1.length, arr2.length);
		for (i = 0; i < minl; i += 1) {
			if (arr1[i] !== arr2[i]) {
				return i;
			}
		}
		return minl;
	}

	function normalizeLocale(key) {
		return key ? key.toLowerCase().replace('_', '-') : key;
	}

	// pick the locale from the array
	// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
	// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
	function chooseLocale(names) {
		var i = 0,
			j,
			next,
			locale,
			split;

		while (i < names.length) {
			split = normalizeLocale(names[i]).split('-');
			j = split.length;
			next = normalizeLocale(names[i + 1]);
			next = next ? next.split('-') : null;
			while (j > 0) {
				locale = loadLocale(split.slice(0, j).join('-'));
				if (locale) {
					return locale;
				}
				if (
					next &&
					next.length >= j &&
					commonPrefix(split, next) >= j - 1
				) {
					//the next array item is better than a shallower substring of this one
					break;
				}
				j--;
			}
			i++;
		}
		return globalLocale;
	}

	function loadLocale(name) {
		var oldLocale = null,
			aliasedRequire;
		// TODO: Find a better way to register and load all the locales in Node
		if (
			locales[name] === undefined &&
			typeof module !== 'undefined' &&
			module &&
			module.exports
		) {
			try {
				oldLocale = globalLocale._abbr;
				aliasedRequire = require;
				aliasedRequire('./locale/' + name);
				getSetGlobalLocale(oldLocale);
			} catch (e) {
				// mark as not found to avoid repeating expensive file require call causing high CPU
				// when trying to find en-US, en_US, en-us for every format call
				locales[name] = null; // null means not found
			}
		}
		return locales[name];
	}

	// This function will load locale and then set the global locale.  If
	// no arguments are passed in, it will simply return the current global
	// locale key.
	function getSetGlobalLocale(key, values) {
		var data;
		if (key) {
			if (isUndefined(values)) {
				data = getLocale(key);
			} else {
				data = defineLocale(key, values);
			}

			if (data) {
				// moment.duration._locale = moment._locale = data;
				globalLocale = data;
			} else {
				if (typeof console !== 'undefined' && console.warn) {
					//warn user if arguments are passed but the locale could not be set
					console.warn(
						'Locale ' + key + ' not found. Did you forget to load it?'
					);
				}
			}
		}

		return globalLocale._abbr;
	}

	function defineLocale(name, config) {
		if (config !== null) {
			var locale,
				parentConfig = baseConfig;
			config.abbr = name;
			if (locales[name] != null) {
				deprecateSimple(
					'defineLocaleOverride',
					'use moment.updateLocale(localeName, config) to change ' +
					'an existing locale. moment.defineLocale(localeName, ' +
					'config) should only be used for creating a new locale ' +
					'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'
				);
				parentConfig = locales[name]._config;
			} else if (config.parentLocale != null) {
				if (locales[config.parentLocale] != null) {
					parentConfig = locales[config.parentLocale]._config;
				} else {
					locale = loadLocale(config.parentLocale);
					if (locale != null) {
						parentConfig = locale._config;
					} else {
						if (!localeFamilies[config.parentLocale]) {
							localeFamilies[config.parentLocale] = [];
						}
						localeFamilies[config.parentLocale].push({
							name: name,
							config: config,
						});
						return null;
					}
				}
			}
			locales[name] = new Locale(mergeConfigs(parentConfig, config));

			if (localeFamilies[name]) {
				localeFamilies[name].forEach(function (x) {
					defineLocale(x.name, x.config);
				});
			}

			// backwards compat for now: also set the locale
			// make sure we set the locale AFTER all child locales have been
			// created, so we won't end up with the child locale set.
			getSetGlobalLocale(name);

			return locales[name];
		} else {
			// useful for testing
			delete locales[name];
			return null;
		}
	}

	function updateLocale(name, config) {
		if (config != null) {
			var locale,
				tmpLocale,
				parentConfig = baseConfig;

			if (locales[name] != null && locales[name].parentLocale != null) {
				// Update existing child locale in-place to avoid memory-leaks
				locales[name].set(mergeConfigs(locales[name]._config, config));
			} else {
				// MERGE
				tmpLocale = loadLocale(name);
				if (tmpLocale != null) {
					parentConfig = tmpLocale._config;
				}
				config = mergeConfigs(parentConfig, config);
				if (tmpLocale == null) {
					// updateLocale is called for creating a new locale
					// Set abbr so it will have a name (getters return
					// undefined otherwise).
					config.abbr = name;
				}
				locale = new Locale(config);
				locale.parentLocale = locales[name];
				locales[name] = locale;
			}

			// backwards compat for now: also set the locale
			getSetGlobalLocale(name);
		} else {
			// pass null for config to unupdate, useful for tests
			if (locales[name] != null) {
				if (locales[name].parentLocale != null) {
					locales[name] = locales[name].parentLocale;
					if (name === getSetGlobalLocale()) {
						getSetGlobalLocale(name);
					}
				} else if (locales[name] != null) {
					delete locales[name];
				}
			}
		}
		return locales[name];
	}

	// returns locale data
	function getLocale(key) {
		var locale;

		if (key && key._locale && key._locale._abbr) {
			key = key._locale._abbr;
		}

		if (!key) {
			return globalLocale;
		}

		if (!isArray(key)) {
			//short-circuit everything else
			locale = loadLocale(key);
			if (locale) {
				return locale;
			}
			key = [key];
		}

		return chooseLocale(key);
	}

	function listLocales() {
		return keys(locales);
	}

	function checkOverflow(m) {
		var overflow,
			a = m._a;

		if (a && getParsingFlags(m).overflow === -2) {
			overflow =
				a[MONTH] < 0 || a[MONTH] > 11
					? MONTH
					: a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])
					? DATE
					: a[HOUR] < 0 ||
					a[HOUR] > 24 ||
					(a[HOUR] === 24 &&
						(a[MINUTE] !== 0 ||
							a[SECOND] !== 0 ||
							a[MILLISECOND] !== 0))
						? HOUR
						: a[MINUTE] < 0 || a[MINUTE] > 59
							? MINUTE
							: a[SECOND] < 0 || a[SECOND] > 59
								? SECOND
								: a[MILLISECOND] < 0 || a[MILLISECOND] > 999
									? MILLISECOND
									: -1;

			if (
				getParsingFlags(m)._overflowDayOfYear &&
				(overflow < YEAR || overflow > DATE)
			) {
				overflow = DATE;
			}
			if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
				overflow = WEEK;
			}
			if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
				overflow = WEEKDAY;
			}

			getParsingFlags(m).overflow = overflow;
		}

		return m;
	}

	// iso 8601 regex
	// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
	var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
		basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d|))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([+-]\d\d(?::?\d\d)?|\s*Z)?)?$/,
		tzRegex = /Z|[+-]\d\d(?::?\d\d)?/,
		isoDates = [
			['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
			['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
			['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
			['GGGG-[W]WW', /\d{4}-W\d\d/, false],
			['YYYY-DDD', /\d{4}-\d{3}/],
			['YYYY-MM', /\d{4}-\d\d/, false],
			['YYYYYYMMDD', /[+-]\d{10}/],
			['YYYYMMDD', /\d{8}/],
			['GGGG[W]WWE', /\d{4}W\d{3}/],
			['GGGG[W]WW', /\d{4}W\d{2}/, false],
			['YYYYDDD', /\d{7}/],
			['YYYYMM', /\d{6}/, false],
			['YYYY', /\d{4}/, false],
		],
		// iso time formats and regexes
		isoTimes = [
			['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
			['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
			['HH:mm:ss', /\d\d:\d\d:\d\d/],
			['HH:mm', /\d\d:\d\d/],
			['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
			['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
			['HHmmss', /\d\d\d\d\d\d/],
			['HHmm', /\d\d\d\d/],
			['HH', /\d\d/],
		],
		aspNetJsonRegex = /^\/?Date\((-?\d+)/i,
		// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
		rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/,
		obsOffsets = {
			UT: 0,
			GMT: 0,
			EDT: -4 * 60,
			EST: -5 * 60,
			CDT: -5 * 60,
			CST: -6 * 60,
			MDT: -6 * 60,
			MST: -7 * 60,
			PDT: -7 * 60,
			PST: -8 * 60,
		};

	// date from iso format
	function configFromISO(config) {
		var i,
			l,
			string = config._i,
			match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
			allowTime,
			dateFormat,
			timeFormat,
			tzFormat;

		if (match) {
			getParsingFlags(config).iso = true;

			for (i = 0, l = isoDates.length; i < l; i++) {
				if (isoDates[i][1].exec(match[1])) {
					dateFormat = isoDates[i][0];
					allowTime = isoDates[i][2] !== false;
					break;
				}
			}
			if (dateFormat == null) {
				config._isValid = false;
				return;
			}
			if (match[3]) {
				for (i = 0, l = isoTimes.length; i < l; i++) {
					if (isoTimes[i][1].exec(match[3])) {
						// match[2] should be 'T' or space
						timeFormat = (match[2] || ' ') + isoTimes[i][0];
						break;
					}
				}
				if (timeFormat == null) {
					config._isValid = false;
					return;
				}
			}
			if (!allowTime && timeFormat != null) {
				config._isValid = false;
				return;
			}
			if (match[4]) {
				if (tzRegex.exec(match[4])) {
					tzFormat = 'Z';
				} else {
					config._isValid = false;
					return;
				}
			}
			config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
			configFromStringAndFormat(config);
		} else {
			config._isValid = false;
		}
	}

	function extractFromRFC2822Strings(
		yearStr,
		monthStr,
		dayStr,
		hourStr,
		minuteStr,
		secondStr
	) {
		var result = [
			untruncateYear(yearStr),
			defaultLocaleMonthsShort.indexOf(monthStr),
			parseInt(dayStr, 10),
			parseInt(hourStr, 10),
			parseInt(minuteStr, 10),
		];

		if (secondStr) {
			result.push(parseInt(secondStr, 10));
		}

		return result;
	}

	function untruncateYear(yearStr) {
		var year = parseInt(yearStr, 10);
		if (year <= 49) {
			return 2000 + year;
		} else if (year <= 999) {
			return 1900 + year;
		}
		return year;
	}

	function preprocessRFC2822(s) {
		// Remove comments and folding whitespace and replace multiple-spaces with a single space
		return s
			.replace(/\([^)]*\)|[\n\t]/g, ' ')
			.replace(/(\s\s+)/g, ' ')
			.replace(/^\s\s*/, '')
			.replace(/\s\s*$/, '');
	}

	function checkWeekday(weekdayStr, parsedInput, config) {
		if (weekdayStr) {
			// TODO: Replace the vanilla JS Date object with an independent day-of-week check.
			var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
				weekdayActual = new Date(
					parsedInput[0],
					parsedInput[1],
					parsedInput[2]
				).getDay();
			if (weekdayProvided !== weekdayActual) {
				getParsingFlags(config).weekdayMismatch = true;
				config._isValid = false;
				return false;
			}
		}
		return true;
	}

	function calculateOffset(obsOffset, militaryOffset, numOffset) {
		if (obsOffset) {
			return obsOffsets[obsOffset];
		} else if (militaryOffset) {
			// the only allowed military tz is Z
			return 0;
		} else {
			var hm = parseInt(numOffset, 10),
				m = hm % 100,
				h = (hm - m) / 100;
			return h * 60 + m;
		}
	}

	// date and time from ref 2822 format
	function configFromRFC2822(config) {
		var match = rfc2822.exec(preprocessRFC2822(config._i)),
			parsedArray;
		if (match) {
			parsedArray = extractFromRFC2822Strings(
				match[4],
				match[3],
				match[2],
				match[5],
				match[6],
				match[7]
			);
			if (!checkWeekday(match[1], parsedArray, config)) {
				return;
			}

			config._a = parsedArray;
			config._tzm = calculateOffset(match[8], match[9], match[10]);

			config._d = createUTCDate.apply(null, config._a);
			config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);

			getParsingFlags(config).rfc2822 = true;
		} else {
			config._isValid = false;
		}
	}

	// date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict
	function configFromString(config) {
		var matched = aspNetJsonRegex.exec(config._i);
		if (matched !== null) {
			config._d = new Date(+matched[1]);
			return;
		}

		configFromISO(config);
		if (config._isValid === false) {
			delete config._isValid;
		} else {
			return;
		}

		configFromRFC2822(config);
		if (config._isValid === false) {
			delete config._isValid;
		} else {
			return;
		}

		if (config._strict) {
			config._isValid = false;
		} else {
			// Final attempt, use Input Fallback
			hooks.createFromInputFallback(config);
		}
	}

	hooks.createFromInputFallback = deprecate(
		'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
		'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
		'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',
		function (config) {
			config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
		}
	);

	// Pick the first defined of two or three arguments.
	function defaults(a, b, c) {
		if (a != null) {
			return a;
		}
		if (b != null) {
			return b;
		}
		return c;
	}

	function currentDateArray(config) {
		// hooks is actually the exported moment object
		var nowValue = new Date(hooks.now());
		if (config._useUTC) {
			return [
				nowValue.getUTCFullYear(),
				nowValue.getUTCMonth(),
				nowValue.getUTCDate(),
			];
		}
		return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
	}

	// convert an array to a date.
	// the array should mirror the parameters below
	// note: all values past the year are optional and will default to the lowest possible value.
	// [year, month, day , hour, minute, second, millisecond]
	function configFromArray(config) {
		var i,
			date,
			input = [],
			currentDate,
			expectedWeekday,
			yearToUse;

		if (config._d) {
			return;
		}

		currentDate = currentDateArray(config);

		//compute day of the year from weeks and weekdays
		if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
			dayOfYearFromWeekInfo(config);
		}

		//if the day of the year is set, figure out what it is
		if (config._dayOfYear != null) {
			yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

			if (
				config._dayOfYear > daysInYear(yearToUse) ||
				config._dayOfYear === 0
			) {
				getParsingFlags(config)._overflowDayOfYear = true;
			}

			date = createUTCDate(yearToUse, 0, config._dayOfYear);
			config._a[MONTH] = date.getUTCMonth();
			config._a[DATE] = date.getUTCDate();
		}

		// Default to current date.
		// * if no year, month, day of month are given, default to today
		// * if day of month is given, default month and year
		// * if month is given, default only year
		// * if year is given, don't default anything
		for (i = 0; i < 3 && config._a[i] == null; ++i) {
			config._a[i] = input[i] = currentDate[i];
		}

		// Zero out whatever was not defaulted, including time
		for (; i < 7; i++) {
			config._a[i] = input[i] =
				config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];
		}

		// Check for 24:00:00.000
		if (
			config._a[HOUR] === 24 &&
			config._a[MINUTE] === 0 &&
			config._a[SECOND] === 0 &&
			config._a[MILLISECOND] === 0
		) {
			config._nextDay = true;
			config._a[HOUR] = 0;
		}

		config._d = (config._useUTC ? createUTCDate : createDate).apply(
			null,
			input
		);
		expectedWeekday = config._useUTC
			? config._d.getUTCDay()
			: config._d.getDay();

		// Apply timezone offset from input. The actual utcOffset can be changed
		// with parseZone.
		if (config._tzm != null) {
			config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
		}

		if (config._nextDay) {
			config._a[HOUR] = 24;
		}

		// check for mismatching day of week
		if (
			config._w &&
			typeof config._w.d !== 'undefined' &&
			config._w.d !== expectedWeekday
		) {
			getParsingFlags(config).weekdayMismatch = true;
		}
	}

	function dayOfYearFromWeekInfo(config) {
		var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;

		w = config._w;
		if (w.GG != null || w.W != null || w.E != null) {
			dow = 1;
			doy = 4;

			// TODO: We need to take the current isoWeekYear, but that depends on
			// how we interpret now (local, utc, fixed offset). So create
			// a now version of current config (take local/utc/offset flags, and
			// create now).
			weekYear = defaults(
				w.GG,
				config._a[YEAR],
				weekOfYear(createLocal(), 1, 4).year
			);
			week = defaults(w.W, 1);
			weekday = defaults(w.E, 1);
			if (weekday < 1 || weekday > 7) {
				weekdayOverflow = true;
			}
		} else {
			dow = config._locale._week.dow;
			doy = config._locale._week.doy;

			curWeek = weekOfYear(createLocal(), dow, doy);

			weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

			// Default to current week.
			week = defaults(w.w, curWeek.week);

			if (w.d != null) {
				// weekday -- low day numbers are considered next week
				weekday = w.d;
				if (weekday < 0 || weekday > 6) {
					weekdayOverflow = true;
				}
			} else if (w.e != null) {
				// local weekday -- counting starts from beginning of week
				weekday = w.e + dow;
				if (w.e < 0 || w.e > 6) {
					weekdayOverflow = true;
				}
			} else {
				// default to beginning of week
				weekday = dow;
			}
		}
		if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
			getParsingFlags(config)._overflowWeeks = true;
		} else if (weekdayOverflow != null) {
			getParsingFlags(config)._overflowWeekday = true;
		} else {
			temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
			config._a[YEAR] = temp.year;
			config._dayOfYear = temp.dayOfYear;
		}
	}

	// constant that refers to the ISO standard
	hooks.ISO_8601 = function () {};

	// constant that refers to the RFC 2822 form
	hooks.RFC_2822 = function () {};

	// date from string and format string
	function configFromStringAndFormat(config) {
		// TODO: Move this to another part of the creation flow to prevent circular deps
		if (config._f === hooks.ISO_8601) {
			configFromISO(config);
			return;
		}
		if (config._f === hooks.RFC_2822) {
			configFromRFC2822(config);
			return;
		}
		config._a = [];
		getParsingFlags(config).empty = true;

		// This array is used to make a Date, either with `new Date` or `Date.UTC`
		var string = '' + config._i,
			i,
			parsedInput,
			tokens,
			token,
			skipped,
			stringLength = string.length,
			totalParsedInputLength = 0,
			era;

		tokens =
			expandFormat(config._f, config._locale).match(formattingTokens) || [];

		for (i = 0; i < tokens.length; i++) {
			token = tokens[i];
			parsedInput = (string.match(getParseRegexForToken(token, config)) ||
				[])[0];
			if (parsedInput) {
				skipped = string.substr(0, string.indexOf(parsedInput));
				if (skipped.length > 0) {
					getParsingFlags(config).unusedInput.push(skipped);
				}
				string = string.slice(
					string.indexOf(parsedInput) + parsedInput.length
				);
				totalParsedInputLength += parsedInput.length;
			}
			// don't parse if it's not a known token
			if (formatTokenFunctions[token]) {
				if (parsedInput) {
					getParsingFlags(config).empty = false;
				} else {
					getParsingFlags(config).unusedTokens.push(token);
				}
				addTimeToArrayFromToken(token, parsedInput, config);
			} else if (config._strict && !parsedInput) {
				getParsingFlags(config).unusedTokens.push(token);
			}
		}

		// add remaining unparsed input length to the string
		getParsingFlags(config).charsLeftOver =
			stringLength - totalParsedInputLength;
		if (string.length > 0) {
			getParsingFlags(config).unusedInput.push(string);
		}

		// clear _12h flag if hour is <= 12
		if (
			config._a[HOUR] <= 12 &&
			getParsingFlags(config).bigHour === true &&
			config._a[HOUR] > 0
		) {
			getParsingFlags(config).bigHour = undefined;
		}

		getParsingFlags(config).parsedDateParts = config._a.slice(0);
		getParsingFlags(config).meridiem = config._meridiem;
		// handle meridiem
		config._a[HOUR] = meridiemFixWrap(
			config._locale,
			config._a[HOUR],
			config._meridiem
		);

		// handle era
		era = getParsingFlags(config).era;
		if (era !== null) {
			config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);
		}

		configFromArray(config);
		checkOverflow(config);
	}

	function meridiemFixWrap(locale, hour, meridiem) {
		var isPm;

		if (meridiem == null) {
			// nothing to do
			return hour;
		}
		if (locale.meridiemHour != null) {
			return locale.meridiemHour(hour, meridiem);
		} else if (locale.isPM != null) {
			// Fallback
			isPm = locale.isPM(meridiem);
			if (isPm && hour < 12) {
				hour += 12;
			}
			if (!isPm && hour === 12) {
				hour = 0;
			}
			return hour;
		} else {
			// this is not supposed to happen
			return hour;
		}
	}

	// date from string and array of format strings
	function configFromStringAndArray(config) {
		var tempConfig,
			bestMoment,
			scoreToBeat,
			i,
			currentScore,
			validFormatFound,
			bestFormatIsValid = false;

		if (config._f.length === 0) {
			getParsingFlags(config).invalidFormat = true;
			config._d = new Date(NaN);
			return;
		}

		for (i = 0; i < config._f.length; i++) {
			currentScore = 0;
			validFormatFound = false;
			tempConfig = copyConfig({}, config);
			if (config._useUTC != null) {
				tempConfig._useUTC = config._useUTC;
			}
			tempConfig._f = config._f[i];
			configFromStringAndFormat(tempConfig);

			if (isValid(tempConfig)) {
				validFormatFound = true;
			}

			// if there is any input that was not parsed add a penalty for that format
			currentScore += getParsingFlags(tempConfig).charsLeftOver;

			//or tokens
			currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

			getParsingFlags(tempConfig).score = currentScore;

			if (!bestFormatIsValid) {
				if (
					scoreToBeat == null ||
					currentScore < scoreToBeat ||
					validFormatFound
				) {
					scoreToBeat = currentScore;
					bestMoment = tempConfig;
					if (validFormatFound) {
						bestFormatIsValid = true;
					}
				}
			} else {
				if (currentScore < scoreToBeat) {
					scoreToBeat = currentScore;
					bestMoment = tempConfig;
				}
			}
		}

		extend(config, bestMoment || tempConfig);
	}

	function configFromObject(config) {
		if (config._d) {
			return;
		}

		var i = normalizeObjectUnits(config._i),
			dayOrDate = i.day === undefined ? i.date : i.day;
		config._a = map(
			[i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],
			function (obj) {
				return obj && parseInt(obj, 10);
			}
		);

		configFromArray(config);
	}

	function createFromConfig(config) {
		var res = new Moment(checkOverflow(prepareConfig(config)));
		if (res._nextDay) {
			// Adding is smart enough around DST
			res.add(1, 'd');
			res._nextDay = undefined;
		}

		return res;
	}

	function prepareConfig(config) {
		var input = config._i,
			format = config._f;

		config._locale = config._locale || getLocale(config._l);

		if (input === null || (format === undefined && input === '')) {
			return createInvalid({ nullInput: true });
		}

		if (typeof input === 'string') {
			config._i = input = config._locale.preparse(input);
		}

		if (isMoment(input)) {
			return new Moment(checkOverflow(input));
		} else if (isDate(input)) {
			config._d = input;
		} else if (isArray(format)) {
			configFromStringAndArray(config);
		} else if (format) {
			configFromStringAndFormat(config);
		} else {
			configFromInput(config);
		}

		if (!isValid(config)) {
			config._d = null;
		}

		return config;
	}

	function configFromInput(config) {
		var input = config._i;
		if (isUndefined(input)) {
			config._d = new Date(hooks.now());
		} else if (isDate(input)) {
			config._d = new Date(input.valueOf());
		} else if (typeof input === 'string') {
			configFromString(config);
		} else if (isArray(input)) {
			config._a = map(input.slice(0), function (obj) {
				return parseInt(obj, 10);
			});
			configFromArray(config);
		} else if (isObject(input)) {
			configFromObject(config);
		} else if (isNumber(input)) {
			// from milliseconds
			config._d = new Date(input);
		} else {
			hooks.createFromInputFallback(config);
		}
	}

	function createLocalOrUTC(input, format, locale, strict, isUTC) {
		var c = {};

		if (format === true || format === false) {
			strict = format;
			format = undefined;
		}

		if (locale === true || locale === false) {
			strict = locale;
			locale = undefined;
		}

		if (
			(isObject(input) && isObjectEmpty(input)) ||
			(isArray(input) && input.length === 0)
		) {
			input = undefined;
		}
		// object construction must be done this way.
		// https://github.com/moment/moment/issues/1423
		c._isAMomentObject = true;
		c._useUTC = c._isUTC = isUTC;
		c._l = locale;
		c._i = input;
		c._f = format;
		c._strict = strict;

		return createFromConfig(c);
	}

	function createLocal(input, format, locale, strict) {
		return createLocalOrUTC(input, format, locale, strict, false);
	}

	var prototypeMin = deprecate(
		'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
		function () {
			var other = createLocal.apply(null, arguments);
			if (this.isValid() && other.isValid()) {
				return other < this ? this : other;
			} else {
				return createInvalid();
			}
		}
		),
		prototypeMax = deprecate(
			'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
			function () {
				var other = createLocal.apply(null, arguments);
				if (this.isValid() && other.isValid()) {
					return other > this ? this : other;
				} else {
					return createInvalid();
				}
			}
		);

	// Pick a moment m from moments so that m[fn](other) is true for all
	// other. This relies on the function fn to be transitive.
	//
	// moments should either be an array of moment objects or an array, whose
	// first element is an array of moment objects.
	function pickBy(fn, moments) {
		var res, i;
		if (moments.length === 1 && isArray(moments[0])) {
			moments = moments[0];
		}
		if (!moments.length) {
			return createLocal();
		}
		res = moments[0];
		for (i = 1; i < moments.length; ++i) {
			if (!moments[i].isValid() || moments[i][fn](res)) {
				res = moments[i];
			}
		}
		return res;
	}

	// TODO: Use [].sort instead?
	function min() {
		var args = [].slice.call(arguments, 0);

		return pickBy('isBefore', args);
	}

	function max() {
		var args = [].slice.call(arguments, 0);

		return pickBy('isAfter', args);
	}

	var now = function () {
		return Date.now ? Date.now() : +new Date();
	};

	var ordering = [
		'year',
		'quarter',
		'month',
		'week',
		'day',
		'hour',
		'minute',
		'second',
		'millisecond',
	];

	function isDurationValid(m) {
		var key,
			unitHasDecimal = false,
			i;
		for (key in m) {
			if (
				hasOwnProp(m, key) &&
				!(
					indexOf.call(ordering, key) !== -1 &&
					(m[key] == null || !isNaN(m[key]))
				)
			) {
				return false;
			}
		}

		for (i = 0; i < ordering.length; ++i) {
			if (m[ordering[i]]) {
				if (unitHasDecimal) {
					return false; // only allow non-integers for smallest unit
				}
				if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
					unitHasDecimal = true;
				}
			}
		}

		return true;
	}

	function isValid$1() {
		return this._isValid;
	}

	function createInvalid$1() {
		return createDuration(NaN);
	}

	function Duration(duration) {
		var normalizedInput = normalizeObjectUnits(duration),
			years = normalizedInput.year || 0,
			quarters = normalizedInput.quarter || 0,
			months = normalizedInput.month || 0,
			weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
			days = normalizedInput.day || 0,
			hours = normalizedInput.hour || 0,
			minutes = normalizedInput.minute || 0,
			seconds = normalizedInput.second || 0,
			milliseconds = normalizedInput.millisecond || 0;

		this._isValid = isDurationValid(normalizedInput);

		// representation for dateAddRemove
		this._milliseconds =
			+milliseconds +
			seconds * 1e3 + // 1000
			minutes * 6e4 + // 1000 * 60
			hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
		// Because of dateAddRemove treats 24 hours as different from a
		// day when working around DST, we need to store them separately
		this._days = +days + weeks * 7;
		// It is impossible to translate months into days without knowing
		// which months you are are talking about, so we have to store
		// it separately.
		this._months = +months + quarters * 3 + years * 12;

		this._data = {};

		this._locale = getLocale();

		this._bubble();
	}

	function isDuration(obj) {
		return obj instanceof Duration;
	}

	function absRound(number) {
		if (number < 0) {
			return Math.round(-1 * number) * -1;
		} else {
			return Math.round(number);
		}
	}

	// compare two arrays, return the number of differences
	function compareArrays(array1, array2, dontConvert) {
		var len = Math.min(array1.length, array2.length),
			lengthDiff = Math.abs(array1.length - array2.length),
			diffs = 0,
			i;
		for (i = 0; i < len; i++) {
			if (
				(dontConvert && array1[i] !== array2[i]) ||
				(!dontConvert && toInt(array1[i]) !== toInt(array2[i]))
			) {
				diffs++;
			}
		}
		return diffs + lengthDiff;
	}

	// FORMATTING

	function offset(token, separator) {
		addFormatToken(token, 0, 0, function () {
			var offset = this.utcOffset(),
				sign = '+';
			if (offset < 0) {
				offset = -offset;
				sign = '-';
			}
			return (
				sign +
				zeroFill(~~(offset / 60), 2) +
				separator +
				zeroFill(~~offset % 60, 2)
			);
		});
	}

	offset('Z', ':');
	offset('ZZ', '');

	// PARSING

	addRegexToken('Z', matchShortOffset);
	addRegexToken('ZZ', matchShortOffset);
	addParseToken(['Z', 'ZZ'], function (input, array, config) {
		config._useUTC = true;
		config._tzm = offsetFromString(matchShortOffset, input);
	});

	// HELPERS

	// timezone chunker
	// '+10:00' > ['10',  '00']
	// '-1530'  > ['-15', '30']
	var chunkOffset = /([\+\-]|\d\d)/gi;

	function offsetFromString(matcher, string) {
		var matches = (string || '').match(matcher),
			chunk,
			parts,
			minutes;

		if (matches === null) {
			return null;
		}

		chunk = matches[matches.length - 1] || [];
		parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];
		minutes = +(parts[1] * 60) + toInt(parts[2]);

		return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;
	}

	// Return a moment from input, that is local/utc/zone equivalent to model.
	function cloneWithOffset(input, model) {
		var res, diff;
		if (model._isUTC) {
			res = model.clone();
			diff =
				(isMoment(input) || isDate(input)
					? input.valueOf()
					: createLocal(input).valueOf()) - res.valueOf();
			// Use low-level api, because this fn is low-level api.
			res._d.setTime(res._d.valueOf() + diff);
			hooks.updateOffset(res, false);
			return res;
		} else {
			return createLocal(input).local();
		}
	}

	function getDateOffset(m) {
		// On Firefox.24 Date#getTimezoneOffset returns a floating point.
		// https://github.com/moment/moment/pull/1871
		return -Math.round(m._d.getTimezoneOffset());
	}

	// HOOKS

	// This function will be called whenever a moment is mutated.
	// It is intended to keep the offset in sync with the timezone.
	hooks.updateOffset = function () {};

	// MOMENTS

	// keepLocalTime = true means only change the timezone, without
	// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
	// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
	// +0200, so we adjust the time as needed, to be valid.
	//
	// Keeping the time actually adds/subtracts (one hour)
	// from the actual represented time. That is why we call updateOffset
	// a second time. In case it wants us to change the offset again
	// _changeInProgress == true case, then we have to adjust, because
	// there is no such time in the given timezone.
	function getSetOffset(input, keepLocalTime, keepMinutes) {
		var offset = this._offset || 0,
			localAdjust;
		if (!this.isValid()) {
			return input != null ? this : NaN;
		}
		if (input != null) {
			if (typeof input === 'string') {
				input = offsetFromString(matchShortOffset, input);
				if (input === null) {
					return this;
				}
			} else if (Math.abs(input) < 16 && !keepMinutes) {
				input = input * 60;
			}
			if (!this._isUTC && keepLocalTime) {
				localAdjust = getDateOffset(this);
			}
			this._offset = input;
			this._isUTC = true;
			if (localAdjust != null) {
				this.add(localAdjust, 'm');
			}
			if (offset !== input) {
				if (!keepLocalTime || this._changeInProgress) {
					addSubtract(
						this,
						createDuration(input - offset, 'm'),
						1,
						false
					);
				} else if (!this._changeInProgress) {
					this._changeInProgress = true;
					hooks.updateOffset(this, true);
					this._changeInProgress = null;
				}
			}
			return this;
		} else {
			return this._isUTC ? offset : getDateOffset(this);
		}
	}

	function getSetZone(input, keepLocalTime) {
		if (input != null) {
			if (typeof input !== 'string') {
				input = -input;
			}

			this.utcOffset(input, keepLocalTime);

			return this;
		} else {
			return -this.utcOffset();
		}
	}

	function setOffsetToUTC(keepLocalTime) {
		return this.utcOffset(0, keepLocalTime);
	}

	function setOffsetToLocal(keepLocalTime) {
		if (this._isUTC) {
			this.utcOffset(0, keepLocalTime);
			this._isUTC = false;

			if (keepLocalTime) {
				this.subtract(getDateOffset(this), 'm');
			}
		}
		return this;
	}

	function setOffsetToParsedOffset() {
		if (this._tzm != null) {
			this.utcOffset(this._tzm, false, true);
		} else if (typeof this._i === 'string') {
			var tZone = offsetFromString(matchOffset, this._i);
			if (tZone != null) {
				this.utcOffset(tZone);
			} else {
				this.utcOffset(0, true);
			}
		}
		return this;
	}

	function hasAlignedHourOffset(input) {
		if (!this.isValid()) {
			return false;
		}
		input = input ? createLocal(input).utcOffset() : 0;

		return (this.utcOffset() - input) % 60 === 0;
	}

	function isDaylightSavingTime() {
		return (
			this.utcOffset() > this.clone().month(0).utcOffset() ||
			this.utcOffset() > this.clone().month(5).utcOffset()
		);
	}

	function isDaylightSavingTimeShifted() {
		if (!isUndefined(this._isDSTShifted)) {
			return this._isDSTShifted;
		}

		var c = {},
			other;

		copyConfig(c, this);
		c = prepareConfig(c);

		if (c._a) {
			other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
			this._isDSTShifted =
				this.isValid() && compareArrays(c._a, other.toArray()) > 0;
		} else {
			this._isDSTShifted = false;
		}

		return this._isDSTShifted;
	}

	function isLocal() {
		return this.isValid() ? !this._isUTC : false;
	}

	function isUtcOffset() {
		return this.isValid() ? this._isUTC : false;
	}

	function isUtc() {
		return this.isValid() ? this._isUTC && this._offset === 0 : false;
	}

	// ASP.NET json date format regex
	var aspNetRegex = /^(-|\+)?(?:(\d*)[. ])?(\d+):(\d+)(?::(\d+)(\.\d*)?)?$/,
		// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
		// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
		// and further modified to allow for strings containing both week and day
		isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;

	function createDuration(input, key) {
		var duration = input,
			// matching against regexp is expensive, do it on demand
			match = null,
			sign,
			ret,
			diffRes;

		if (isDuration(input)) {
			duration = {
				ms: input._milliseconds,
				d: input._days,
				M: input._months,
			};
		} else if (isNumber(input) || !isNaN(+input)) {
			duration = {};
			if (key) {
				duration[key] = +input;
			} else {
				duration.milliseconds = +input;
			}
		} else if ((match = aspNetRegex.exec(input))) {
			sign = match[1] === '-' ? -1 : 1;
			duration = {
				y: 0,
				d: toInt(match[DATE]) * sign,
				h: toInt(match[HOUR]) * sign,
				m: toInt(match[MINUTE]) * sign,
				s: toInt(match[SECOND]) * sign,
				ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match
			};
		} else if ((match = isoRegex.exec(input))) {
			sign = match[1] === '-' ? -1 : 1;
			duration = {
				y: parseIso(match[2], sign),
				M: parseIso(match[3], sign),
				w: parseIso(match[4], sign),
				d: parseIso(match[5], sign),
				h: parseIso(match[6], sign),
				m: parseIso(match[7], sign),
				s: parseIso(match[8], sign),
			};
		} else if (duration == null) {
			// checks for null or undefined
			duration = {};
		} else if (
			typeof duration === 'object' &&
			('from' in duration || 'to' in duration)
		) {
			diffRes = momentsDifference(
				createLocal(duration.from),
				createLocal(duration.to)
			);

			duration = {};
			duration.ms = diffRes.milliseconds;
			duration.M = diffRes.months;
		}

		ret = new Duration(duration);

		if (isDuration(input) && hasOwnProp(input, '_locale')) {
			ret._locale = input._locale;
		}

		if (isDuration(input) && hasOwnProp(input, '_isValid')) {
			ret._isValid = input._isValid;
		}

		return ret;
	}

	createDuration.fn = Duration.prototype;
	createDuration.invalid = createInvalid$1;

	function parseIso(inp, sign) {
		// We'd normally use ~~inp for this, but unfortunately it also
		// converts floats to ints.
		// inp may be undefined, so careful calling replace on it.
		var res = inp && parseFloat(inp.replace(',', '.'));
		// apply sign while we're at it
		return (isNaN(res) ? 0 : res) * sign;
	}

	function positiveMomentsDifference(base, other) {
		var res = {};

		res.months =
			other.month() - base.month() + (other.year() - base.year()) * 12;
		if (base.clone().add(res.months, 'M').isAfter(other)) {
			--res.months;
		}

		res.milliseconds = +other - +base.clone().add(res.months, 'M');

		return res;
	}

	function momentsDifference(base, other) {
		var res;
		if (!(base.isValid() && other.isValid())) {
			return { milliseconds: 0, months: 0 };
		}

		other = cloneWithOffset(other, base);
		if (base.isBefore(other)) {
			res = positiveMomentsDifference(base, other);
		} else {
			res = positiveMomentsDifference(other, base);
			res.milliseconds = -res.milliseconds;
			res.months = -res.months;
		}

		return res;
	}

	// TODO: remove 'name' arg after deprecation is removed
	function createAdder(direction, name) {
		return function (val, period) {
			var dur, tmp;
			//invert the arguments, but complain about it
			if (period !== null && !isNaN(+period)) {
				deprecateSimple(
					name,
					'moment().' +
					name +
					'(period, number) is deprecated. Please use moment().' +
					name +
					'(number, period). ' +
					'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'
				);
				tmp = val;
				val = period;
				period = tmp;
			}

			dur = createDuration(val, period);
			addSubtract(this, dur, direction);
			return this;
		};
	}

	function addSubtract(mom, duration, isAdding, updateOffset) {
		var milliseconds = duration._milliseconds,
			days = absRound(duration._days),
			months = absRound(duration._months);

		if (!mom.isValid()) {
			// No op
			return;
		}

		updateOffset = updateOffset == null ? true : updateOffset;

		if (months) {
			setMonth(mom, get(mom, 'Month') + months * isAdding);
		}
		if (days) {
			set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
		}
		if (milliseconds) {
			mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
		}
		if (updateOffset) {
			hooks.updateOffset(mom, days || months);
		}
	}

	var add = createAdder(1, 'add'),
		subtract = createAdder(-1, 'subtract');

	function isString(input) {
		return typeof input === 'string' || input instanceof String;
	}

	// type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined
	function isMomentInput(input) {
		return (
			isMoment(input) ||
			isDate(input) ||
			isString(input) ||
			isNumber(input) ||
			isNumberOrStringArray(input) ||
			isMomentInputObject(input) ||
			input === null ||
			input === undefined
		);
	}

	function isMomentInputObject(input) {
		var objectTest = isObject(input) && !isObjectEmpty(input),
			propertyTest = false,
			properties = [
				'years',
				'year',
				'y',
				'months',
				'month',
				'M',
				'days',
				'day',
				'd',
				'dates',
				'date',
				'D',
				'hours',
				'hour',
				'h',
				'minutes',
				'minute',
				'm',
				'seconds',
				'second',
				's',
				'milliseconds',
				'millisecond',
				'ms',
			],
			i,
			property;

		for (i = 0; i < properties.length; i += 1) {
			property = properties[i];
			propertyTest = propertyTest || hasOwnProp(input, property);
		}

		return objectTest && propertyTest;
	}

	function isNumberOrStringArray(input) {
		var arrayTest = isArray(input),
			dataTypeTest = false;
		if (arrayTest) {
			dataTypeTest =
				input.filter(function (item) {
					return !isNumber(item) && isString(input);
				}).length === 0;
		}
		return arrayTest && dataTypeTest;
	}

	function isCalendarSpec(input) {
		var objectTest = isObject(input) && !isObjectEmpty(input),
			propertyTest = false,
			properties = [
				'sameDay',
				'nextDay',
				'lastDay',
				'nextWeek',
				'lastWeek',
				'sameElse',
			],
			i,
			property;

		for (i = 0; i < properties.length; i += 1) {
			property = properties[i];
			propertyTest = propertyTest || hasOwnProp(input, property);
		}

		return objectTest && propertyTest;
	}

	function getCalendarFormat(myMoment, now) {
		var diff = myMoment.diff(now, 'days', true);
		return diff < -6
			? 'sameElse'
			: diff < -1
				? 'lastWeek'
				: diff < 0
					? 'lastDay'
					: diff < 1
						? 'sameDay'
						: diff < 2
							? 'nextDay'
							: diff < 7
								? 'nextWeek'
								: 'sameElse';
	}

	function calendar$1(time, formats) {
		// Support for single parameter, formats only overload to the calendar function
		if (arguments.length === 1) {
			if (!arguments[0]) {
				time = undefined;
				formats = undefined;
			} else if (isMomentInput(arguments[0])) {
				time = arguments[0];
				formats = undefined;
			} else if (isCalendarSpec(arguments[0])) {
				formats = arguments[0];
				time = undefined;
			}
		}
		// We want to compare the start of today, vs this.
		// Getting start-of-today depends on whether we're local/utc/offset or not.
		var now = time || createLocal(),
			sod = cloneWithOffset(now, this).startOf('day'),
			format = hooks.calendarFormat(this, sod) || 'sameElse',
			output =
				formats &&
				(isFunction(formats[format])
					? formats[format].call(this, now)
					: formats[format]);

		return this.format(
			output || this.localeData().calendar(format, this, createLocal(now))
		);
	}

	function clone() {
		return new Moment(this);
	}

	function isAfter(input, units) {
		var localInput = isMoment(input) ? input : createLocal(input);
		if (!(this.isValid() && localInput.isValid())) {
			return false;
		}
		units = normalizeUnits(units) || 'millisecond';
		if (units === 'millisecond') {
			return this.valueOf() > localInput.valueOf();
		} else {
			return localInput.valueOf() < this.clone().startOf(units).valueOf();
		}
	}

	function isBefore(input, units) {
		var localInput = isMoment(input) ? input : createLocal(input);
		if (!(this.isValid() && localInput.isValid())) {
			return false;
		}
		units = normalizeUnits(units) || 'millisecond';
		if (units === 'millisecond') {
			return this.valueOf() < localInput.valueOf();
		} else {
			return this.clone().endOf(units).valueOf() < localInput.valueOf();
		}
	}

	function isBetween(from, to, units, inclusivity) {
		var localFrom = isMoment(from) ? from : createLocal(from),
			localTo = isMoment(to) ? to : createLocal(to);
		if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
			return false;
		}
		inclusivity = inclusivity || '()';
		return (
			(inclusivity[0] === '('
				? this.isAfter(localFrom, units)
				: !this.isBefore(localFrom, units)) &&
			(inclusivity[1] === ')'
				? this.isBefore(localTo, units)
				: !this.isAfter(localTo, units))
		);
	}

	function isSame(input, units) {
		var localInput = isMoment(input) ? input : createLocal(input),
			inputMs;
		if (!(this.isValid() && localInput.isValid())) {
			return false;
		}
		units = normalizeUnits(units) || 'millisecond';
		if (units === 'millisecond') {
			return this.valueOf() === localInput.valueOf();
		} else {
			inputMs = localInput.valueOf();
			return (
				this.clone().startOf(units).valueOf() <= inputMs &&
				inputMs <= this.clone().endOf(units).valueOf()
			);
		}
	}

	function isSameOrAfter(input, units) {
		return this.isSame(input, units) || this.isAfter(input, units);
	}

	function isSameOrBefore(input, units) {
		return this.isSame(input, units) || this.isBefore(input, units);
	}

	function diff(input, units, asFloat) {
		var that, zoneDelta, output;

		if (!this.isValid()) {
			return NaN;
		}

		that = cloneWithOffset(input, this);

		if (!that.isValid()) {
			return NaN;
		}

		zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

		units = normalizeUnits(units);

		switch (units) {
			case 'year':
				output = monthDiff(this, that) / 12;
				break;
			case 'month':
				output = monthDiff(this, that);
				break;
			case 'quarter':
				output = monthDiff(this, that) / 3;
				break;
			case 'second':
				output = (this - that) / 1e3;
				break; // 1000
			case 'minute':
				output = (this - that) / 6e4;
				break; // 1000 * 60
			case 'hour':
				output = (this - that) / 36e5;
				break; // 1000 * 60 * 60
			case 'day':
				output = (this - that - zoneDelta) / 864e5;
				break; // 1000 * 60 * 60 * 24, negate dst
			case 'week':
				output = (this - that - zoneDelta) / 6048e5;
				break; // 1000 * 60 * 60 * 24 * 7, negate dst
			default:
				output = this - that;
		}

		return asFloat ? output : absFloor(output);
	}

	function monthDiff(a, b) {
		if (a.date() < b.date()) {
			// end-of-month calculations work correct when the start month has more
			// days than the end month.
			return -monthDiff(b, a);
		}
		// difference in months
		var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),
			// b is in (anchor - 1 month, anchor + 1 month)
			anchor = a.clone().add(wholeMonthDiff, 'months'),
			anchor2,
			adjust;

		if (b - anchor < 0) {
			anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
			// linear across the month
			adjust = (b - anchor) / (anchor - anchor2);
		} else {
			anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
			// linear across the month
			adjust = (b - anchor) / (anchor2 - anchor);
		}

		//check for negative zero, return zero if negative zero
		return -(wholeMonthDiff + adjust) || 0;
	}

	hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
	hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

	function toString() {
		return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
	}

	function toISOString(keepOffset) {
		if (!this.isValid()) {
			return null;
		}
		var utc = keepOffset !== true,
			m = utc ? this.clone().utc() : this;
		if (m.year() < 0 || m.year() > 9999) {
			return formatMoment(
				m,
				utc
					? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'
					: 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'
			);
		}
		if (isFunction(Date.prototype.toISOString)) {
			// native implementation is ~50x faster, use it when we can
			if (utc) {
				return this.toDate().toISOString();
			} else {
				return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)
					.toISOString()
					.replace('Z', formatMoment(m, 'Z'));
			}
		}
		return formatMoment(
			m,
			utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'
		);
	}

	/**
	 * Return a human readable representation of a moment that can
	 * also be evaluated to get a new moment which is the same
	 *
	 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
	 */
	function inspect() {
		if (!this.isValid()) {
			return 'moment.invalid(/* ' + this._i + ' */)';
		}
		var func = 'moment',
			zone = '',
			prefix,
			year,
			datetime,
			suffix;
		if (!this.isLocal()) {
			func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
			zone = 'Z';
		}
		prefix = '[' + func + '("]';
		year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';
		datetime = '-MM-DD[T]HH:mm:ss.SSS';
		suffix = zone + '[")]';

		return this.format(prefix + year + datetime + suffix);
	}

	function format(inputString) {
		if (!inputString) {
			inputString = this.isUtc()
				? hooks.defaultFormatUtc
				: hooks.defaultFormat;
		}
		var output = formatMoment(this, inputString);
		return this.localeData().postformat(output);
	}

	function from(time, withoutSuffix) {
		if (
			this.isValid() &&
			((isMoment(time) && time.isValid()) || createLocal(time).isValid())
		) {
			return createDuration({ to: this, from: time })
				.locale(this.locale())
				.humanize(!withoutSuffix);
		} else {
			return this.localeData().invalidDate();
		}
	}

	function fromNow(withoutSuffix) {
		return this.from(createLocal(), withoutSuffix);
	}

	function to(time, withoutSuffix) {
		if (
			this.isValid() &&
			((isMoment(time) && time.isValid()) || createLocal(time).isValid())
		) {
			return createDuration({ from: this, to: time })
				.locale(this.locale())
				.humanize(!withoutSuffix);
		} else {
			return this.localeData().invalidDate();
		}
	}

	function toNow(withoutSuffix) {
		return this.to(createLocal(), withoutSuffix);
	}

	// If passed a locale key, it will set the locale for this
	// instance.  Otherwise, it will return the locale configuration
	// variables for this instance.
	function locale(key) {
		var newLocaleData;

		if (key === undefined) {
			return this._locale._abbr;
		} else {
			newLocaleData = getLocale(key);
			if (newLocaleData != null) {
				this._locale = newLocaleData;
			}
			return this;
		}
	}

	var lang = deprecate(
		'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
		function (key) {
			if (key === undefined) {
				return this.localeData();
			} else {
				return this.locale(key);
			}
		}
	);

	function localeData() {
		return this._locale;
	}

	var MS_PER_SECOND = 1000,
		MS_PER_MINUTE = 60 * MS_PER_SECOND,
		MS_PER_HOUR = 60 * MS_PER_MINUTE,
		MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;

	// actual modulo - handles negative numbers (for dates before 1970):
	function mod$1(dividend, divisor) {
		return ((dividend % divisor) + divisor) % divisor;
	}

	function localStartOfDate(y, m, d) {
		// the date constructor remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			// preserve leap years using a full 400 year cycle, then reset
			return new Date(y + 400, m, d) - MS_PER_400_YEARS;
		} else {
			return new Date(y, m, d).valueOf();
		}
	}

	function utcStartOfDate(y, m, d) {
		// Date.UTC remaps years 0-99 to 1900-1999
		if (y < 100 && y >= 0) {
			// preserve leap years using a full 400 year cycle, then reset
			return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
		} else {
			return Date.UTC(y, m, d);
		}
	}

	function startOf(units) {
		var time, startOfDate;
		units = normalizeUnits(units);
		if (units === undefined || units === 'millisecond' || !this.isValid()) {
			return this;
		}

		startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;

		switch (units) {
			case 'year':
				time = startOfDate(this.year(), 0, 1);
				break;
			case 'quarter':
				time = startOfDate(
					this.year(),
					this.month() - (this.month() % 3),
					1
				);
				break;
			case 'month':
				time = startOfDate(this.year(), this.month(), 1);
				break;
			case 'week':
				time = startOfDate(
					this.year(),
					this.month(),
					this.date() - this.weekday()
				);
				break;
			case 'isoWeek':
				time = startOfDate(
					this.year(),
					this.month(),
					this.date() - (this.isoWeekday() - 1)
				);
				break;
			case 'day':
			case 'date':
				time = startOfDate(this.year(), this.month(), this.date());
				break;
			case 'hour':
				time = this._d.valueOf();
				time -= mod$1(
					time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
					MS_PER_HOUR
				);
				break;
			case 'minute':
				time = this._d.valueOf();
				time -= mod$1(time, MS_PER_MINUTE);
				break;
			case 'second':
				time = this._d.valueOf();
				time -= mod$1(time, MS_PER_SECOND);
				break;
		}

		this._d.setTime(time);
		hooks.updateOffset(this, true);
		return this;
	}

	function endOf(units) {
		var time, startOfDate;
		units = normalizeUnits(units);
		if (units === undefined || units === 'millisecond' || !this.isValid()) {
			return this;
		}

		startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;

		switch (units) {
			case 'year':
				time = startOfDate(this.year() + 1, 0, 1) - 1;
				break;
			case 'quarter':
				time =
					startOfDate(
						this.year(),
						this.month() - (this.month() % 3) + 3,
						1
					) - 1;
				break;
			case 'month':
				time = startOfDate(this.year(), this.month() + 1, 1) - 1;
				break;
			case 'week':
				time =
					startOfDate(
						this.year(),
						this.month(),
						this.date() - this.weekday() + 7
					) - 1;
				break;
			case 'isoWeek':
				time =
					startOfDate(
						this.year(),
						this.month(),
						this.date() - (this.isoWeekday() - 1) + 7
					) - 1;
				break;
			case 'day':
			case 'date':
				time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
				break;
			case 'hour':
				time = this._d.valueOf();
				time +=
					MS_PER_HOUR -
					mod$1(
						time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),
						MS_PER_HOUR
					) -
					1;
				break;
			case 'minute':
				time = this._d.valueOf();
				time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
				break;
			case 'second':
				time = this._d.valueOf();
				time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
				break;
		}

		this._d.setTime(time);
		hooks.updateOffset(this, true);
		return this;
	}

	function valueOf() {
		return this._d.valueOf() - (this._offset || 0) * 60000;
	}

	function unix() {
		return Math.floor(this.valueOf() / 1000);
	}

	function toDate() {
		return new Date(this.valueOf());
	}

	function toArray() {
		var m = this;
		return [
			m.year(),
			m.month(),
			m.date(),
			m.hour(),
			m.minute(),
			m.second(),
			m.millisecond(),
		];
	}

	function toObject() {
		var m = this;
		return {
			years: m.year(),
			months: m.month(),
			date: m.date(),
			hours: m.hours(),
			minutes: m.minutes(),
			seconds: m.seconds(),
			milliseconds: m.milliseconds(),
		};
	}

	function toJSON() {
		// new Date(NaN).toJSON() === null
		return this.isValid() ? this.toISOString() : null;
	}

	function isValid$2() {
		return isValid(this);
	}

	function parsingFlags() {
		return extend({}, getParsingFlags(this));
	}

	function invalidAt() {
		return getParsingFlags(this).overflow;
	}

	function creationData() {
		return {
			input: this._i,
			format: this._f,
			locale: this._locale,
			isUTC: this._isUTC,
			strict: this._strict,
		};
	}

	addFormatToken('N', 0, 0, 'eraAbbr');
	addFormatToken('NN', 0, 0, 'eraAbbr');
	addFormatToken('NNN', 0, 0, 'eraAbbr');
	addFormatToken('NNNN', 0, 0, 'eraName');
	addFormatToken('NNNNN', 0, 0, 'eraNarrow');

	addFormatToken('y', ['y', 1], 'yo', 'eraYear');
	addFormatToken('y', ['yy', 2], 0, 'eraYear');
	addFormatToken('y', ['yyy', 3], 0, 'eraYear');
	addFormatToken('y', ['yyyy', 4], 0, 'eraYear');

	addRegexToken('N', matchEraAbbr);
	addRegexToken('NN', matchEraAbbr);
	addRegexToken('NNN', matchEraAbbr);
	addRegexToken('NNNN', matchEraName);
	addRegexToken('NNNNN', matchEraNarrow);

	addParseToken(['N', 'NN', 'NNN', 'NNNN', 'NNNNN'], function (
		input,
		array,
		config,
		token
	) {
		var era = config._locale.erasParse(input, token, config._strict);
		if (era) {
			getParsingFlags(config).era = era;
		} else {
			getParsingFlags(config).invalidEra = input;
		}
	});

	addRegexToken('y', matchUnsigned);
	addRegexToken('yy', matchUnsigned);
	addRegexToken('yyy', matchUnsigned);
	addRegexToken('yyyy', matchUnsigned);
	addRegexToken('yo', matchEraYearOrdinal);

	addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);
	addParseToken(['yo'], function (input, array, config, token) {
		var match;
		if (config._locale._eraYearOrdinalRegex) {
			match = input.match(config._locale._eraYearOrdinalRegex);
		}

		if (config._locale.eraYearOrdinalParse) {
			array[YEAR] = config._locale.eraYearOrdinalParse(input, match);
		} else {
			array[YEAR] = parseInt(input, 10);
		}
	});

	function localeEras(m, format) {
		var i,
			l,
			date,
			eras = this._eras || getLocale('en')._eras;
		for (i = 0, l = eras.length; i < l; ++i) {
			switch (typeof eras[i].since) {
				case 'string':
					// truncate time
					date = hooks(eras[i].since).startOf('day');
					eras[i].since = date.valueOf();
					break;
			}

			switch (typeof eras[i].until) {
				case 'undefined':
					eras[i].until = +Infinity;
					break;
				case 'string':
					// truncate time
					date = hooks(eras[i].until).startOf('day').valueOf();
					eras[i].until = date.valueOf();
					break;
			}
		}
		return eras;
	}

	function localeErasParse(eraName, format, strict) {
		var i,
			l,
			eras = this.eras(),
			name,
			abbr,
			narrow;
		eraName = eraName.toUpperCase();

		for (i = 0, l = eras.length; i < l; ++i) {
			name = eras[i].name.toUpperCase();
			abbr = eras[i].abbr.toUpperCase();
			narrow = eras[i].narrow.toUpperCase();

			if (strict) {
				switch (format) {
					case 'N':
					case 'NN':
					case 'NNN':
						if (abbr === eraName) {
							return eras[i];
						}
						break;

					case 'NNNN':
						if (name === eraName) {
							return eras[i];
						}
						break;

					case 'NNNNN':
						if (narrow === eraName) {
							return eras[i];
						}
						break;
				}
			} else if ([name, abbr, narrow].indexOf(eraName) >= 0) {
				return eras[i];
			}
		}
	}

	function localeErasConvertYear(era, year) {
		var dir = era.since <= era.until ? +1 : -1;
		if (year === undefined) {
			return hooks(era.since).year();
		} else {
			return hooks(era.since).year() + (year - era.offset) * dir;
		}
	}

	function getEraName() {
		var i,
			l,
			val,
			eras = this.localeData().eras();
		for (i = 0, l = eras.length; i < l; ++i) {
			// truncate time
			val = this.clone().startOf('day').valueOf();

			if (eras[i].since <= val && val <= eras[i].until) {
				return eras[i].name;
			}
			if (eras[i].until <= val && val <= eras[i].since) {
				return eras[i].name;
			}
		}

		return '';
	}

	function getEraNarrow() {
		var i,
			l,
			val,
			eras = this.localeData().eras();
		for (i = 0, l = eras.length; i < l; ++i) {
			// truncate time
			val = this.clone().startOf('day').valueOf();

			if (eras[i].since <= val && val <= eras[i].until) {
				return eras[i].narrow;
			}
			if (eras[i].until <= val && val <= eras[i].since) {
				return eras[i].narrow;
			}
		}

		return '';
	}

	function getEraAbbr() {
		var i,
			l,
			val,
			eras = this.localeData().eras();
		for (i = 0, l = eras.length; i < l; ++i) {
			// truncate time
			val = this.clone().startOf('day').valueOf();

			if (eras[i].since <= val && val <= eras[i].until) {
				return eras[i].abbr;
			}
			if (eras[i].until <= val && val <= eras[i].since) {
				return eras[i].abbr;
			}
		}

		return '';
	}

	function getEraYear() {
		var i,
			l,
			dir,
			val,
			eras = this.localeData().eras();
		for (i = 0, l = eras.length; i < l; ++i) {
			dir = eras[i].since <= eras[i].until ? +1 : -1;

			// truncate time
			val = this.clone().startOf('day').valueOf();

			if (
				(eras[i].since <= val && val <= eras[i].until) ||
				(eras[i].until <= val && val <= eras[i].since)
			) {
				return (
					(this.year() - hooks(eras[i].since).year()) * dir +
					eras[i].offset
				);
			}
		}

		return this.year();
	}

	function erasNameRegex(isStrict) {
		if (!hasOwnProp(this, '_erasNameRegex')) {
			computeErasParse.call(this);
		}
		return isStrict ? this._erasNameRegex : this._erasRegex;
	}

	function erasAbbrRegex(isStrict) {
		if (!hasOwnProp(this, '_erasAbbrRegex')) {
			computeErasParse.call(this);
		}
		return isStrict ? this._erasAbbrRegex : this._erasRegex;
	}

	function erasNarrowRegex(isStrict) {
		if (!hasOwnProp(this, '_erasNarrowRegex')) {
			computeErasParse.call(this);
		}
		return isStrict ? this._erasNarrowRegex : this._erasRegex;
	}

	function matchEraAbbr(isStrict, locale) {
		return locale.erasAbbrRegex(isStrict);
	}

	function matchEraName(isStrict, locale) {
		return locale.erasNameRegex(isStrict);
	}

	function matchEraNarrow(isStrict, locale) {
		return locale.erasNarrowRegex(isStrict);
	}

	function matchEraYearOrdinal(isStrict, locale) {
		return locale._eraYearOrdinalRegex || matchUnsigned;
	}

	function computeErasParse() {
		var abbrPieces = [],
			namePieces = [],
			narrowPieces = [],
			mixedPieces = [],
			i,
			l,
			eras = this.eras();

		for (i = 0, l = eras.length; i < l; ++i) {
			namePieces.push(regexEscape(eras[i].name));
			abbrPieces.push(regexEscape(eras[i].abbr));
			narrowPieces.push(regexEscape(eras[i].narrow));

			mixedPieces.push(regexEscape(eras[i].name));
			mixedPieces.push(regexEscape(eras[i].abbr));
			mixedPieces.push(regexEscape(eras[i].narrow));
		}

		this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
		this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');
		this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');
		this._erasNarrowRegex = new RegExp(
			'^(' + narrowPieces.join('|') + ')',
			'i'
		);
	}

	// FORMATTING

	addFormatToken(0, ['gg', 2], 0, function () {
		return this.weekYear() % 100;
	});

	addFormatToken(0, ['GG', 2], 0, function () {
		return this.isoWeekYear() % 100;
	});

	function addWeekYearFormatToken(token, getter) {
		addFormatToken(0, [token, token.length], 0, getter);
	}

	addWeekYearFormatToken('gggg', 'weekYear');
	addWeekYearFormatToken('ggggg', 'weekYear');
	addWeekYearFormatToken('GGGG', 'isoWeekYear');
	addWeekYearFormatToken('GGGGG', 'isoWeekYear');

	// ALIASES

	addUnitAlias('weekYear', 'gg');
	addUnitAlias('isoWeekYear', 'GG');

	// PRIORITY

	addUnitPriority('weekYear', 1);
	addUnitPriority('isoWeekYear', 1);

	// PARSING

	addRegexToken('G', matchSigned);
	addRegexToken('g', matchSigned);
	addRegexToken('GG', match1to2, match2);
	addRegexToken('gg', match1to2, match2);
	addRegexToken('GGGG', match1to4, match4);
	addRegexToken('gggg', match1to4, match4);
	addRegexToken('GGGGG', match1to6, match6);
	addRegexToken('ggggg', match1to6, match6);

	addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (
		input,
		week,
		config,
		token
	) {
		week[token.substr(0, 2)] = toInt(input);
	});

	addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
		week[token] = hooks.parseTwoDigitYear(input);
	});

	// MOMENTS

	function getSetWeekYear(input) {
		return getSetWeekYearHelper.call(
			this,
			input,
			this.week(),
			this.weekday(),
			this.localeData()._week.dow,
			this.localeData()._week.doy
		);
	}

	function getSetISOWeekYear(input) {
		return getSetWeekYearHelper.call(
			this,
			input,
			this.isoWeek(),
			this.isoWeekday(),
			1,
			4
		);
	}

	function getISOWeeksInYear() {
		return weeksInYear(this.year(), 1, 4);
	}

	function getISOWeeksInISOWeekYear() {
		return weeksInYear(this.isoWeekYear(), 1, 4);
	}

	function getWeeksInYear() {
		var weekInfo = this.localeData()._week;
		return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
	}

	function getWeeksInWeekYear() {
		var weekInfo = this.localeData()._week;
		return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);
	}

	function getSetWeekYearHelper(input, week, weekday, dow, doy) {
		var weeksTarget;
		if (input == null) {
			return weekOfYear(this, dow, doy).year;
		} else {
			weeksTarget = weeksInYear(input, dow, doy);
			if (week > weeksTarget) {
				week = weeksTarget;
			}
			return setWeekAll.call(this, input, week, weekday, dow, doy);
		}
	}

	function setWeekAll(weekYear, week, weekday, dow, doy) {
		var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
			date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

		this.year(date.getUTCFullYear());
		this.month(date.getUTCMonth());
		this.date(date.getUTCDate());
		return this;
	}

	// FORMATTING

	addFormatToken('Q', 0, 'Qo', 'quarter');

	// ALIASES

	addUnitAlias('quarter', 'Q');

	// PRIORITY

	addUnitPriority('quarter', 7);

	// PARSING

	addRegexToken('Q', match1);
	addParseToken('Q', function (input, array) {
		array[MONTH] = (toInt(input) - 1) * 3;
	});

	// MOMENTS

	function getSetQuarter(input) {
		return input == null
			? Math.ceil((this.month() + 1) / 3)
			: this.month((input - 1) * 3 + (this.month() % 3));
	}

	// FORMATTING

	addFormatToken('D', ['DD', 2], 'Do', 'date');

	// ALIASES

	addUnitAlias('date', 'D');

	// PRIORITY
	addUnitPriority('date', 9);

	// PARSING

	addRegexToken('D', match1to2);
	addRegexToken('DD', match1to2, match2);
	addRegexToken('Do', function (isStrict, locale) {
		// TODO: Remove "ordinalParse" fallback in next major release.
		return isStrict
			? locale._dayOfMonthOrdinalParse || locale._ordinalParse
			: locale._dayOfMonthOrdinalParseLenient;
	});

	addParseToken(['D', 'DD'], DATE);
	addParseToken('Do', function (input, array) {
		array[DATE] = toInt(input.match(match1to2)[0]);
	});

	// MOMENTS

	var getSetDayOfMonth = makeGetSet('Date', true);

	// FORMATTING

	addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

	// ALIASES

	addUnitAlias('dayOfYear', 'DDD');

	// PRIORITY
	addUnitPriority('dayOfYear', 4);

	// PARSING

	addRegexToken('DDD', match1to3);
	addRegexToken('DDDD', match3);
	addParseToken(['DDD', 'DDDD'], function (input, array, config) {
		config._dayOfYear = toInt(input);
	});

	// HELPERS

	// MOMENTS

	function getSetDayOfYear(input) {
		var dayOfYear =
			Math.round(
				(this.clone().startOf('day') - this.clone().startOf('year')) / 864e5
			) + 1;
		return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');
	}

	// FORMATTING

	addFormatToken('m', ['mm', 2], 0, 'minute');

	// ALIASES

	addUnitAlias('minute', 'm');

	// PRIORITY

	addUnitPriority('minute', 14);

	// PARSING

	addRegexToken('m', match1to2);
	addRegexToken('mm', match1to2, match2);
	addParseToken(['m', 'mm'], MINUTE);

	// MOMENTS

	var getSetMinute = makeGetSet('Minutes', false);

	// FORMATTING

	addFormatToken('s', ['ss', 2], 0, 'second');

	// ALIASES

	addUnitAlias('second', 's');

	// PRIORITY

	addUnitPriority('second', 15);

	// PARSING

	addRegexToken('s', match1to2);
	addRegexToken('ss', match1to2, match2);
	addParseToken(['s', 'ss'], SECOND);

	// MOMENTS

	var getSetSecond = makeGetSet('Seconds', false);

	// FORMATTING

	addFormatToken('S', 0, 0, function () {
		return ~~(this.millisecond() / 100);
	});

	addFormatToken(0, ['SS', 2], 0, function () {
		return ~~(this.millisecond() / 10);
	});

	addFormatToken(0, ['SSS', 3], 0, 'millisecond');
	addFormatToken(0, ['SSSS', 4], 0, function () {
		return this.millisecond() * 10;
	});
	addFormatToken(0, ['SSSSS', 5], 0, function () {
		return this.millisecond() * 100;
	});
	addFormatToken(0, ['SSSSSS', 6], 0, function () {
		return this.millisecond() * 1000;
	});
	addFormatToken(0, ['SSSSSSS', 7], 0, function () {
		return this.millisecond() * 10000;
	});
	addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
		return this.millisecond() * 100000;
	});
	addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
		return this.millisecond() * 1000000;
	});

	// ALIASES

	addUnitAlias('millisecond', 'ms');

	// PRIORITY

	addUnitPriority('millisecond', 16);

	// PARSING

	addRegexToken('S', match1to3, match1);
	addRegexToken('SS', match1to3, match2);
	addRegexToken('SSS', match1to3, match3);

	var token, getSetMillisecond;
	for (token = 'SSSS'; token.length <= 9; token += 'S') {
		addRegexToken(token, matchUnsigned);
	}

	function parseMs(input, array) {
		array[MILLISECOND] = toInt(('0.' + input) * 1000);
	}

	for (token = 'S'; token.length <= 9; token += 'S') {
		addParseToken(token, parseMs);
	}

	getSetMillisecond = makeGetSet('Milliseconds', false);

	// FORMATTING

	addFormatToken('z', 0, 0, 'zoneAbbr');
	addFormatToken('zz', 0, 0, 'zoneName');

	// MOMENTS

	function getZoneAbbr() {
		return this._isUTC ? 'UTC' : '';
	}

	function getZoneName() {
		return this._isUTC ? 'Coordinated Universal Time' : '';
	}

	var proto = Moment.prototype;

	proto.add = add;
	proto.calendar = calendar$1;
	proto.clone = clone;
	proto.diff = diff;
	proto.endOf = endOf;
	proto.format = format;
	proto.from = from;
	proto.fromNow = fromNow;
	proto.to = to;
	proto.toNow = toNow;
	proto.get = stringGet;
	proto.invalidAt = invalidAt;
	proto.isAfter = isAfter;
	proto.isBefore = isBefore;
	proto.isBetween = isBetween;
	proto.isSame = isSame;
	proto.isSameOrAfter = isSameOrAfter;
	proto.isSameOrBefore = isSameOrBefore;
	proto.isValid = isValid$2;
	proto.lang = lang;
	proto.locale = locale;
	proto.localeData = localeData;
	proto.max = prototypeMax;
	proto.min = prototypeMin;
	proto.parsingFlags = parsingFlags;
	proto.set = stringSet;
	proto.startOf = startOf;
	proto.subtract = subtract;
	proto.toArray = toArray;
	proto.toObject = toObject;
	proto.toDate = toDate;
	proto.toISOString = toISOString;
	proto.inspect = inspect;
	if (typeof Symbol !== 'undefined' && Symbol.for != null) {
		proto[Symbol.for('nodejs.util.inspect.custom')] = function () {
			return 'Moment<' + this.format() + '>';
		};
	}
	proto.toJSON = toJSON;
	proto.toString = toString;
	proto.unix = unix;
	proto.valueOf = valueOf;
	proto.creationData = creationData;
	proto.eraName = getEraName;
	proto.eraNarrow = getEraNarrow;
	proto.eraAbbr = getEraAbbr;
	proto.eraYear = getEraYear;
	proto.year = getSetYear;
	proto.isLeapYear = getIsLeapYear;
	proto.weekYear = getSetWeekYear;
	proto.isoWeekYear = getSetISOWeekYear;
	proto.quarter = proto.quarters = getSetQuarter;
	proto.month = getSetMonth;
	proto.daysInMonth = getDaysInMonth;
	proto.week = proto.weeks = getSetWeek;
	proto.isoWeek = proto.isoWeeks = getSetISOWeek;
	proto.weeksInYear = getWeeksInYear;
	proto.weeksInWeekYear = getWeeksInWeekYear;
	proto.isoWeeksInYear = getISOWeeksInYear;
	proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;
	proto.date = getSetDayOfMonth;
	proto.day = proto.days = getSetDayOfWeek;
	proto.weekday = getSetLocaleDayOfWeek;
	proto.isoWeekday = getSetISODayOfWeek;
	proto.dayOfYear = getSetDayOfYear;
	proto.hour = proto.hours = getSetHour;
	proto.minute = proto.minutes = getSetMinute;
	proto.second = proto.seconds = getSetSecond;
	proto.millisecond = proto.milliseconds = getSetMillisecond;
	proto.utcOffset = getSetOffset;
	proto.utc = setOffsetToUTC;
	proto.local = setOffsetToLocal;
	proto.parseZone = setOffsetToParsedOffset;
	proto.hasAlignedHourOffset = hasAlignedHourOffset;
	proto.isDST = isDaylightSavingTime;
	proto.isLocal = isLocal;
	proto.isUtcOffset = isUtcOffset;
	proto.isUtc = isUtc;
	proto.isUTC = isUtc;
	proto.zoneAbbr = getZoneAbbr;
	proto.zoneName = getZoneName;
	proto.dates = deprecate(
		'dates accessor is deprecated. Use date instead.',
		getSetDayOfMonth
	);
	proto.months = deprecate(
		'months accessor is deprecated. Use month instead',
		getSetMonth
	);
	proto.years = deprecate(
		'years accessor is deprecated. Use year instead',
		getSetYear
	);
	proto.zone = deprecate(
		'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',
		getSetZone
	);
	proto.isDSTShifted = deprecate(
		'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',
		isDaylightSavingTimeShifted
	);

	function createUnix(input) {
		return createLocal(input * 1000);
	}

	function createInZone() {
		return createLocal.apply(null, arguments).parseZone();
	}

	function preParsePostFormat(string) {
		return string;
	}

	var proto$1 = Locale.prototype;

	proto$1.calendar = calendar;
	proto$1.longDateFormat = longDateFormat;
	proto$1.invalidDate = invalidDate;
	proto$1.ordinal = ordinal;
	proto$1.preparse = preParsePostFormat;
	proto$1.postformat = preParsePostFormat;
	proto$1.relativeTime = relativeTime;
	proto$1.pastFuture = pastFuture;
	proto$1.set = set;
	proto$1.eras = localeEras;
	proto$1.erasParse = localeErasParse;
	proto$1.erasConvertYear = localeErasConvertYear;
	proto$1.erasAbbrRegex = erasAbbrRegex;
	proto$1.erasNameRegex = erasNameRegex;
	proto$1.erasNarrowRegex = erasNarrowRegex;

	proto$1.months = localeMonths;
	proto$1.monthsShort = localeMonthsShort;
	proto$1.monthsParse = localeMonthsParse;
	proto$1.monthsRegex = monthsRegex;
	proto$1.monthsShortRegex = monthsShortRegex;
	proto$1.week = localeWeek;
	proto$1.firstDayOfYear = localeFirstDayOfYear;
	proto$1.firstDayOfWeek = localeFirstDayOfWeek;

	proto$1.weekdays = localeWeekdays;
	proto$1.weekdaysMin = localeWeekdaysMin;
	proto$1.weekdaysShort = localeWeekdaysShort;
	proto$1.weekdaysParse = localeWeekdaysParse;

	proto$1.weekdaysRegex = weekdaysRegex;
	proto$1.weekdaysShortRegex = weekdaysShortRegex;
	proto$1.weekdaysMinRegex = weekdaysMinRegex;

	proto$1.isPM = localeIsPM;
	proto$1.meridiem = localeMeridiem;

	function get$1(format, index, field, setter) {
		var locale = getLocale(),
			utc = createUTC().set(setter, index);
		return locale[field](utc, format);
	}

	function listMonthsImpl(format, index, field) {
		if (isNumber(format)) {
			index = format;
			format = undefined;
		}

		format = format || '';

		if (index != null) {
			return get$1(format, index, field, 'month');
		}

		var i,
			out = [];
		for (i = 0; i < 12; i++) {
			out[i] = get$1(format, i, field, 'month');
		}
		return out;
	}

	// ()
	// (5)
	// (fmt, 5)
	// (fmt)
	// (true)
	// (true, 5)
	// (true, fmt, 5)
	// (true, fmt)
	function listWeekdaysImpl(localeSorted, format, index, field) {
		if (typeof localeSorted === 'boolean') {
			if (isNumber(format)) {
				index = format;
				format = undefined;
			}

			format = format || '';
		} else {
			format = localeSorted;
			index = format;
			localeSorted = false;

			if (isNumber(format)) {
				index = format;
				format = undefined;
			}

			format = format || '';
		}

		var locale = getLocale(),
			shift = localeSorted ? locale._week.dow : 0,
			i,
			out = [];

		if (index != null) {
			return get$1(format, (index + shift) % 7, field, 'day');
		}

		for (i = 0; i < 7; i++) {
			out[i] = get$1(format, (i + shift) % 7, field, 'day');
		}
		return out;
	}

	function listMonths(format, index) {
		return listMonthsImpl(format, index, 'months');
	}

	function listMonthsShort(format, index) {
		return listMonthsImpl(format, index, 'monthsShort');
	}

	function listWeekdays(localeSorted, format, index) {
		return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
	}

	function listWeekdaysShort(localeSorted, format, index) {
		return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
	}

	function listWeekdaysMin(localeSorted, format, index) {
		return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
	}

	getSetGlobalLocale('en', {
		eras: [
			{
				since: '0001-01-01',
				until: +Infinity,
				offset: 1,
				name: 'Anno Domini',
				narrow: 'AD',
				abbr: 'AD',
			},
			{
				since: '0000-12-31',
				until: -Infinity,
				offset: 1,
				name: 'Before Christ',
				narrow: 'BC',
				abbr: 'BC',
			},
		],
		dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
		ordinal: function (number) {
			var b = number % 10,
				output =
					toInt((number % 100) / 10) === 1
						? 'th'
						: b === 1
						? 'st'
						: b === 2
							? 'nd'
							: b === 3
								? 'rd'
								: 'th';
			return number + output;
		},
	});

	// Side effect imports

	hooks.lang = deprecate(
		'moment.lang is deprecated. Use moment.locale instead.',
		getSetGlobalLocale
	);
	hooks.langData = deprecate(
		'moment.langData is deprecated. Use moment.localeData instead.',
		getLocale
	);

	var mathAbs = Math.abs;

	function abs() {
		var data = this._data;

		this._milliseconds = mathAbs(this._milliseconds);
		this._days = mathAbs(this._days);
		this._months = mathAbs(this._months);

		data.milliseconds = mathAbs(data.milliseconds);
		data.seconds = mathAbs(data.seconds);
		data.minutes = mathAbs(data.minutes);
		data.hours = mathAbs(data.hours);
		data.months = mathAbs(data.months);
		data.years = mathAbs(data.years);

		return this;
	}

	function addSubtract$1(duration, input, value, direction) {
		var other = createDuration(input, value);

		duration._milliseconds += direction * other._milliseconds;
		duration._days += direction * other._days;
		duration._months += direction * other._months;

		return duration._bubble();
	}

	// supports only 2.0-style add(1, 's') or add(duration)
	function add$1(input, value) {
		return addSubtract$1(this, input, value, 1);
	}

	// supports only 2.0-style subtract(1, 's') or subtract(duration)
	function subtract$1(input, value) {
		return addSubtract$1(this, input, value, -1);
	}

	function absCeil(number) {
		if (number < 0) {
			return Math.floor(number);
		} else {
			return Math.ceil(number);
		}
	}

	function bubble() {
		var milliseconds = this._milliseconds,
			days = this._days,
			months = this._months,
			data = this._data,
			seconds,
			minutes,
			hours,
			years,
			monthsFromDays;

		// if we have a mix of positive and negative values, bubble down first
		// check: https://github.com/moment/moment/issues/2166
		if (
			!(
				(milliseconds >= 0 && days >= 0 && months >= 0) ||
				(milliseconds <= 0 && days <= 0 && months <= 0)
			)
		) {
			milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
			days = 0;
			months = 0;
		}

		// The following code bubbles up values, see the tests for
		// examples of what that means.
		data.milliseconds = milliseconds % 1000;

		seconds = absFloor(milliseconds / 1000);
		data.seconds = seconds % 60;

		minutes = absFloor(seconds / 60);
		data.minutes = minutes % 60;

		hours = absFloor(minutes / 60);
		data.hours = hours % 24;

		days += absFloor(hours / 24);

		// convert days to months
		monthsFromDays = absFloor(daysToMonths(days));
		months += monthsFromDays;
		days -= absCeil(monthsToDays(monthsFromDays));

		// 12 months -> 1 year
		years = absFloor(months / 12);
		months %= 12;

		data.days = days;
		data.months = months;
		data.years = years;

		return this;
	}

	function daysToMonths(days) {
		// 400 years have 146097 days (taking into account leap year rules)
		// 400 years have 12 months === 4800
		return (days * 4800) / 146097;
	}

	function monthsToDays(months) {
		// the reverse of daysToMonths
		return (months * 146097) / 4800;
	}

	function as(units) {
		if (!this.isValid()) {
			return NaN;
		}
		var days,
			months,
			milliseconds = this._milliseconds;

		units = normalizeUnits(units);

		if (units === 'month' || units === 'quarter' || units === 'year') {
			days = this._days + milliseconds / 864e5;
			months = this._months + daysToMonths(days);
			switch (units) {
				case 'month':
					return months;
				case 'quarter':
					return months / 3;
				case 'year':
					return months / 12;
			}
		} else {
			// handle milliseconds separately because of floating point math errors (issue #1867)
			days = this._days + Math.round(monthsToDays(this._months));
			switch (units) {
				case 'week':
					return days / 7 + milliseconds / 6048e5;
				case 'day':
					return days + milliseconds / 864e5;
				case 'hour':
					return days * 24 + milliseconds / 36e5;
				case 'minute':
					return days * 1440 + milliseconds / 6e4;
				case 'second':
					return days * 86400 + milliseconds / 1000;
				// Math.floor prevents floating point math errors here
				case 'millisecond':
					return Math.floor(days * 864e5) + milliseconds;
				default:
					throw new Error('Unknown unit ' + units);
			}
		}
	}

	// TODO: Use this.as('ms')?
	function valueOf$1() {
		if (!this.isValid()) {
			return NaN;
		}
		return (
			this._milliseconds +
			this._days * 864e5 +
			(this._months % 12) * 2592e6 +
			toInt(this._months / 12) * 31536e6
		);
	}

	function makeAs(alias) {
		return function () {
			return this.as(alias);
		};
	}

	var asMilliseconds = makeAs('ms'),
		asSeconds = makeAs('s'),
		asMinutes = makeAs('m'),
		asHours = makeAs('h'),
		asDays = makeAs('d'),
		asWeeks = makeAs('w'),
		asMonths = makeAs('M'),
		asQuarters = makeAs('Q'),
		asYears = makeAs('y');

	function clone$1() {
		return createDuration(this);
	}

	function get$2(units) {
		units = normalizeUnits(units);
		return this.isValid() ? this[units + 's']() : NaN;
	}

	function makeGetter(name) {
		return function () {
			return this.isValid() ? this._data[name] : NaN;
		};
	}

	var milliseconds = makeGetter('milliseconds'),
		seconds = makeGetter('seconds'),
		minutes = makeGetter('minutes'),
		hours = makeGetter('hours'),
		days = makeGetter('days'),
		months = makeGetter('months'),
		years = makeGetter('years');

	function weeks() {
		return absFloor(this.days() / 7);
	}

	var round = Math.round,
		thresholds = {
			ss: 44, // a few seconds to seconds
			s: 45, // seconds to minute
			m: 45, // minutes to hour
			h: 22, // hours to day
			d: 26, // days to month/week
			w: null, // weeks to month
			M: 11, // months to year
		};

	// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
	function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
		return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
	}

	function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {
		var duration = createDuration(posNegDuration).abs(),
			seconds = round(duration.as('s')),
			minutes = round(duration.as('m')),
			hours = round(duration.as('h')),
			days = round(duration.as('d')),
			months = round(duration.as('M')),
			weeks = round(duration.as('w')),
			years = round(duration.as('y')),
			a =
				(seconds <= thresholds.ss && ['s', seconds]) ||
				(seconds < thresholds.s && ['ss', seconds]) ||
				(minutes <= 1 && ['m']) ||
				(minutes < thresholds.m && ['mm', minutes]) ||
				(hours <= 1 && ['h']) ||
				(hours < thresholds.h && ['hh', hours]) ||
				(days <= 1 && ['d']) ||
				(days < thresholds.d && ['dd', days]);

		if (thresholds.w != null) {
			a =
				a ||
				(weeks <= 1 && ['w']) ||
				(weeks < thresholds.w && ['ww', weeks]);
		}
		a = a ||
			(months <= 1 && ['M']) ||
			(months < thresholds.M && ['MM', months]) ||
			(years <= 1 && ['y']) || ['yy', years];

		a[2] = withoutSuffix;
		a[3] = +posNegDuration > 0;
		a[4] = locale;
		return substituteTimeAgo.apply(null, a);
	}

	// This function allows you to set the rounding function for relative time strings
	function getSetRelativeTimeRounding(roundingFunction) {
		if (roundingFunction === undefined) {
			return round;
		}
		if (typeof roundingFunction === 'function') {
			round = roundingFunction;
			return true;
		}
		return false;
	}

	// This function allows you to set a threshold for relative time strings
	function getSetRelativeTimeThreshold(threshold, limit) {
		if (thresholds[threshold] === undefined) {
			return false;
		}
		if (limit === undefined) {
			return thresholds[threshold];
		}
		thresholds[threshold] = limit;
		if (threshold === 's') {
			thresholds.ss = limit - 1;
		}
		return true;
	}

	function humanize(argWithSuffix, argThresholds) {
		if (!this.isValid()) {
			return this.localeData().invalidDate();
		}

		var withSuffix = false,
			th = thresholds,
			locale,
			output;

		if (typeof argWithSuffix === 'object') {
			argThresholds = argWithSuffix;
			argWithSuffix = false;
		}
		if (typeof argWithSuffix === 'boolean') {
			withSuffix = argWithSuffix;
		}
		if (typeof argThresholds === 'object') {
			th = Object.assign({}, thresholds, argThresholds);
			if (argThresholds.s != null && argThresholds.ss == null) {
				th.ss = argThresholds.s - 1;
			}
		}

		locale = this.localeData();
		output = relativeTime$1(this, !withSuffix, th, locale);

		if (withSuffix) {
			output = locale.pastFuture(+this, output);
		}

		return locale.postformat(output);
	}

	var abs$1 = Math.abs;

	function sign(x) {
		return (x > 0) - (x < 0) || +x;
	}

	function toISOString$1() {
		// for ISO strings we do not use the normal bubbling rules:
		//  * milliseconds bubble up until they become hours
		//  * days do not bubble at all
		//  * months bubble up until they become years
		// This is because there is no context-free conversion between hours and days
		// (think of clock changes)
		// and also not between days and months (28-31 days per month)
		if (!this.isValid()) {
			return this.localeData().invalidDate();
		}

		var seconds = abs$1(this._milliseconds) / 1000,
			days = abs$1(this._days),
			months = abs$1(this._months),
			minutes,
			hours,
			years,
			s,
			total = this.asSeconds(),
			totalSign,
			ymSign,
			daysSign,
			hmsSign;

		if (!total) {
			// this is the same as C#'s (Noda) and python (isodate)...
			// but not other JS (goog.date)
			return 'P0D';
		}

		// 3600 seconds -> 60 minutes -> 1 hour
		minutes = absFloor(seconds / 60);
		hours = absFloor(minutes / 60);
		seconds %= 60;
		minutes %= 60;

		// 12 months -> 1 year
		years = absFloor(months / 12);
		months %= 12;

		// inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
		s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';

		totalSign = total < 0 ? '-' : '';
		ymSign = sign(this._months) !== sign(total) ? '-' : '';
		daysSign = sign(this._days) !== sign(total) ? '-' : '';
		hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';

		return (
			totalSign +
			'P' +
			(years ? ymSign + years + 'Y' : '') +
			(months ? ymSign + months + 'M' : '') +
			(days ? daysSign + days + 'D' : '') +
			(hours || minutes || seconds ? 'T' : '') +
			(hours ? hmsSign + hours + 'H' : '') +
			(minutes ? hmsSign + minutes + 'M' : '') +
			(seconds ? hmsSign + s + 'S' : '')
		);
	}

	var proto$2 = Duration.prototype;

	proto$2.isValid = isValid$1;
	proto$2.abs = abs;
	proto$2.add = add$1;
	proto$2.subtract = subtract$1;
	proto$2.as = as;
	proto$2.asMilliseconds = asMilliseconds;
	proto$2.asSeconds = asSeconds;
	proto$2.asMinutes = asMinutes;
	proto$2.asHours = asHours;
	proto$2.asDays = asDays;
	proto$2.asWeeks = asWeeks;
	proto$2.asMonths = asMonths;
	proto$2.asQuarters = asQuarters;
	proto$2.asYears = asYears;
	proto$2.valueOf = valueOf$1;
	proto$2._bubble = bubble;
	proto$2.clone = clone$1;
	proto$2.get = get$2;
	proto$2.milliseconds = milliseconds;
	proto$2.seconds = seconds;
	proto$2.minutes = minutes;
	proto$2.hours = hours;
	proto$2.days = days;
	proto$2.weeks = weeks;
	proto$2.months = months;
	proto$2.years = years;
	proto$2.humanize = humanize;
	proto$2.toISOString = toISOString$1;
	proto$2.toString = toISOString$1;
	proto$2.toJSON = toISOString$1;
	proto$2.locale = locale;
	proto$2.localeData = localeData;

	proto$2.toIsoString = deprecate(
		'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',
		toISOString$1
	);
	proto$2.lang = lang;

	// FORMATTING

	addFormatToken('X', 0, 0, 'unix');
	addFormatToken('x', 0, 0, 'valueOf');

	// PARSING

	addRegexToken('x', matchSigned);
	addRegexToken('X', matchTimestamp);
	addParseToken('X', function (input, array, config) {
		config._d = new Date(parseFloat(input) * 1000);
	});
	addParseToken('x', function (input, array, config) {
		config._d = new Date(toInt(input));
	});

	//! moment.js

	hooks.version = '2.29.1';

	setHookCallback(createLocal);

	hooks.fn = proto;
	hooks.min = min;
	hooks.max = max;
	hooks.now = now;
	hooks.utc = createUTC;
	hooks.unix = createUnix;
	hooks.months = listMonths;
	hooks.isDate = isDate;
	hooks.locale = getSetGlobalLocale;
	hooks.invalid = createInvalid;
	hooks.duration = createDuration;
	hooks.isMoment = isMoment;
	hooks.weekdays = listWeekdays;
	hooks.parseZone = createInZone;
	hooks.localeData = getLocale;
	hooks.isDuration = isDuration;
	hooks.monthsShort = listMonthsShort;
	hooks.weekdaysMin = listWeekdaysMin;
	hooks.defineLocale = defineLocale;
	hooks.updateLocale = updateLocale;
	hooks.locales = listLocales;
	hooks.weekdaysShort = listWeekdaysShort;
	hooks.normalizeUnits = normalizeUnits;
	hooks.relativeTimeRounding = getSetRelativeTimeRounding;
	hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
	hooks.calendarFormat = getCalendarFormat;
	hooks.prototype = proto;

	// currently HTML5 input type only supports 24-hour formats
	hooks.HTML5_FMT = {
		DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // <input type="datetime-local" />
		DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // <input type="datetime-local" step="1" />
		DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // <input type="datetime-local" step="0.001" />
		DATE: 'YYYY-MM-DD', // <input type="date" />
		TIME: 'HH:mm', // <input type="time" />
		TIME_SECONDS: 'HH:mm:ss', // <input type="time" step="1" />
		TIME_MS: 'HH:mm:ss.SSS', // <input type="time" step="0.001" />
		WEEK: 'GGGG-[W]WW', // <input type="week" />
		MONTH: 'YYYY-MM', // <input type="month" />
	};

	return hooks;

})));
